Slashdot Mirror


American Solar Challenge 2003 Starts

Ryan Kingsbury writes "The world's longest solar car race kicked off to a sunny start today in Chicago! The American Solar Challenge, which is only held every two years, runs 11 gruelling days along historic Route 66. Race updates can be found at the official site. One big surprise was that last year's winner (University of Michigan) didn't make it through prerace qualifications. This will certainly give some lower budget teams a chance at gold. Details of qualifications can be found here."

176 comments

  1. wooha by Klimaxor · · Score: 1

    That's cool and all...but what happens if they have 10 days of clouds?

    First non-troll post :D

    --
    your sins into me, oh my beautiful one.
    1. Re:wooha by Carnivorous+Carrot · · Score: 2, Funny

      > That's cool and all...but what happens if they
      > have 10 days of clouds?

      They go to war with Iraq. Duh!

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
    2. Re:wooha by Anonymous Coward · · Score: 1, Funny

      what happens if they have 10 days of clouds?

      Yabba dabba doo?

    3. Re:wooha by Timesprout · · Score: 1

      Then I imagine the speeding fines imposed for trying to cover 2200 odd miles in a day will probably negate the prize fund for the winners and put everyone into serious debt for at least a year. Maybe this is why its a biannual event

      --
      Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
      What truth?
      There is no dupe
    4. Re:wooha by Wampus+Aurelius · · Score: 3, Informative

      Funny you should mention that. A buddy of mine is on the Cal Poly team and he was telling me that they had several overcast days last week, which made it impossible for them to complete the final qualifying round, which was to go a certain distance in a set number of days. As a result, there were very few qualifying teams in the stock class race. The judges ended up lowering the distance requirement so there would be more teams in the final race.

    5. Re:wooha by miratrix · · Score: 2, Informative

      Newer and more expensive cells (triple junction, GaAs) can manage to extract power even if it's cloudy. Also, solar cars have maximum power point trackers to extract maximum amount of power from the array as well as battery to run the car off from. For instance, during the qualifier a month back at Topeka Kansas, Midnight Sun Solar Car from University of Waterloo qualified for the race running solely off the battery power.

      Cloudy days will put a damper on things and will limit the speed at which the solar cars will travel, but it doesn't mean that they'll be dead in the water either.

  2. No sun for you by FaasNat · · Score: 1

    Last year's winner not making it through qualifications? Must've been a cloudy day.

    --
    There's never enough when you have too little
    1. Re:No sun for you by Carnivorous+Carrot · · Score: 1

      As a lifelong Michigander, I can safely say that if it were a cloudy day, with all our experience with it, they'd have won.

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
    2. Re:No sun for you by Anonymous Coward · · Score: 1, Interesting

      Not to mention the race is held only every 2 years, how could there be a last years winner anyway?

    3. Re:No sun for you by cryptochrome · · Score: 1

      Actually, they had a very good solar array that performs much better than most of the others out there. They had unresolvable problems with their steering. They used a 4-wheel steering system, with the rear wheels controlled by a servo, which was not responsive enough to perform adequately on the figure-eight steering test.

      --

      ---If you can't trust a nerd, who can you trust?

  3. Hm... by Anonymous Coward · · Score: 2, Funny

    This brings a whole new meaning to traveling by day. :P

  4. Woooo by CptChipJew · · Score: 0

    Gotta love solar power

    --
    Vonal Declosion
    1. Re:Woooo by Timesprout · · Score: 1, Funny

      You wont be saying that in a couple of years

      --
      Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
      What truth?
      There is no dupe
  5. Slight problem? by aeinome · · Score: 0, Troll

    What if there is an extremely cloudy day? Wouldn't that ruin all the fun?

    --
    When you don't have a leg to stand on, don't even get up.
    1. Re:Slight problem? by the_2nd_coming · · Score: 2, Informative

      depends on how they construct the electrical system, and the level of cloudyness. just an overcast day can still produce electricity.

      --



      I am the Alpha and the Omega-3
    2. Re:Slight problem? by Klimaxor · · Score: 2, Interesting

      i'm no electrical engineer, but i'm guessing they would most likely being using very sensative panels, ones manufactured for "less the perfect" lighting conditions. Back that with a decent series of capaciters and priority based distribution, they wouldn't have any problems.

      --
      your sins into me, oh my beautiful one.
    3. Re:Slight problem? by JewFish · · Score: 1

      Whenever someone starts a sentence with "I am no , yaddya yaddya about " I always stop reading after the comma.

      btw, I am a EE

    4. Re:Slight problem? by Fred+Ferrigno · · Score: 1

      One, as others have pointed out, solar systems can still run on a cloudy day. Two, they have battery backups. Three, poor weather conditions effect all the teams (pretty much) equally.

  6. Prize should be bigger by Hao+Wu · · Score: 4, Interesting

    If prize was set at 1000000$, 10000000$, or even more money, contest winners will likely build SUPER sun vehicles that can over-take 4-wheel ram rods and pollutant S.U.V.s.

    --
    I suggest you read Slashdot
    1. Re:Prize should be bigger by Carnivorous+Carrot · · Score: 2, Interesting

      > If prize was set at 1000000$, 10000000$, or
      > even more money, contest winners will likely
      > build SUPER sun vehicles that can over-take
      > 4-wheel ram rods and pollutant S.U.V.s.

      Umm, in a free-market, free-country, capitalist world, the prize is at least five orders of magnitude larger than that.

      It's not an easy problem.

      Oh, and one old clunker driven by a starving environment-loving artist gives off more pollutants than any 50 modern SUVs.

      --
      "Has [being a kidnapped teenage girl, raped repeatedly for months] changed you?" - Katie Couric to Elizabeth Smart
    2. Re:Prize should be bigger by csnydermvpsoft · · Score: 1

      Oh, and one old clunker driven by a starving environment-loving artist gives off more pollutants than any 50 modern SUVs.

      True, but the environmental cost has already been paid in the creation of that clunker. No matter how bad your car pollutes, it is still more environmentally friendly to drive it into the ground than to get a new vehicle.

    3. Re:Prize should be bigger by Klimaxor · · Score: 0, Flamebait

      SUV's aren't all that pollutant. They just use a fuck of a lot of fuel to run. That's why some many people bitch about them, because they suck down fossil fuels. Old cars and shit give off more pollutants then SUVs

      --
      your sins into me, oh my beautiful one.
    4. Re:Prize should be bigger by Hao+Wu · · Score: 1

      True, but the environmental cost has already been paid in the creation of that clunker. No matter how bad your car pollutes, it is still more environmentally friendly to drive it into the ground than to get a new vehicle.

      Then the prize should be 5 times 50 times bigger! So then NEITHER S.U.V.s nor stupid old cars from pre-1980s will ever drive again.

      --
      I suggest you read Slashdot
    5. Re:Prize should be bigger by Hao+Wu · · Score: 1

      SUV's aren't all that pollutant. They just use a fuck of a lot of fuel to run. That's why some many people bitch about them, because they suck down fossil fuels. Old cars and shit give off more pollutants then SUVs

      Then sun power must use fuck of a lot less of fuel. Then you can bitch about fossil fuel suckers, while newly powered cars will give off shitloads less pollution!

      --
      I suggest you read Slashdot
    6. Re:Prize should be bigger by Anonymous Coward · · Score: 0

      Cause we all know that solar panels are made from compressed grilled sunflower seeds and that battery fluids can be made from coconut milk.

      The only truly pollution free energy sources are really wind power and thermal.

    7. Re:Prize should be bigger by GoRK · · Score: 1

      That's not really true. You can definately have an older car repaired or the engine replaced with something cleaner and come out well on top. They do recycle most of the stuff, and all of that aluminum, steel, etc will not have to be remanufactured, which is where the real problem is - the original creation of the aluminum/steel.

    8. Re:Prize should be bigger by csnydermvpsoft · · Score: 1

      The environmental cost of a new car (or repairing an old car) is not just the parts - another huge cost is the energy needed to run the factories that produce the new vehicles/parts is huge.

    9. Re:Prize should be bigger by Darth_brooks · · Score: 1

      True, but the environmental cost has already been paid in the creation of that clunker. No matter how bad your car pollutes, it is still more environmentally friendly to drive it into the ground than to get a new vehicle.

      Sure. It is more environmentally friendly to drive a vehicle that in one year puts out more air pollution than a new car will do in a lifetime.

      Yes, drive the old car into the ground. Let it leak and burn oil as the seals rot and the piston rings wear. Oh, and you can leak a little anti-freeze along the way.

      Hey, How about you just run a cheap straight pipe in place of that expensive catalytic converter? who needs to convert those exhaust gasses into something a little cleaner.

      It's not more environmentally friendly, it's just cheaper. When the car dies, just leave it by the side of the road, let someone take care of the mess. Where's the good old -1:Troll when you need it?

      --
      There are some people that if they don't know, you can't tell 'em.
    10. Re:Prize should be bigger by Hao+Wu · · Score: 1

      another huge cost is the energy needed to run the factories that produce the new vehicles/parts is huge.

      Solar power factory should be built by solar power construction company, using solar power android worker.

      --
      I suggest you read Slashdot
    11. Re:Prize should be bigger by csnydermvpsoft · · Score: 1

      I think part of our difference in opinion comes from different definitions of "clunker." Sure, a '70's Cadillac that causes people to turn their fog lights on whenever it accelerates should not be driven, but there are other cars that many people would consider "clunkers" that are much more environmentally friendly. And nothing excuses poor maintenance, no matter how old your car.

    12. Re:Prize should be bigger by Darth_brooks · · Score: 1

      And nothing excuses poor maintenance, no matter how old your car.

      Point made. And taken.

      Were you towing that Rio on your website through MI today?

      --
      There are some people that if they don't know, you can't tell 'em.
    13. Re:Prize should be bigger by pj737 · · Score: 1

      What the hell are thermal solar panels and wind gens made of? Homogenized peppertree juice?

    14. Re:Prize should be bigger by Anonymous Coward · · Score: 0

      I have Conan out back turning a big fucking wheel made out of wood. Powers my whole block.

    15. Re:Prize should be bigger by confused+one · · Score: 1
      Actually, the physics for this doesn't work out. If you figure that the average SUV (my pickup truck for example) has an upper surface area of 7 meters square. Also, the angle of the surface is not ideal wrt the sun. Typical solar cells are less than 10% efficient; but, for argument sakes we'll bump this number up to 15%. This gives you a maximum energy intake of about 1.6 kW which is only 2.2 hp. Battery storage would allow for some additional peak capacity; but, could hardly offset the requirements for modern cars or allow night operations.

      Even at 100% efficiency (which is impossible), you're only talking about 10.5 kW or 14 hp.

  7. what a waste by mooface · · Score: 5, Insightful

    It'd be much better if the students pursued smaller, more discrete projects that they could truly get involved with. It's sad that many engineering students end up doing things like PR, fundraisers, etc etc instead of engineering -- and trust me, that is what happens at places like UM. They don't have to be ruined by paperwork 2 years into a bachelors degree. They'll have plenty of time in the real world to trade useful engineering skills for that...

    1. Re:what a waste by the_2nd_coming · · Score: 1

      what is even worse is that there is no real inovation going into these cars. no soar cell research, no testing of new tech that is untested.

      most of the design goes into ultra low weight materials and maximum surface area.

      --



      I am the Alpha and the Omega-3
    2. Re:what a waste by barzok · · Score: 4, Informative

      At the university I attended, IIRC, they got students from the business school to head up a lot of that stuff for SunRayce. It let the engineering students focus on building the damn thing. Actually had students from several areas of study in the university involved with the project.

      Looks like they're not even in it this year. Not really surprising, actually. The program was going downhill while I was a student there (didn't work on the project myself).

    3. Re:what a waste by xenocide2 · · Score: 4, Insightful

      You're absolutely correct, these engineering students aren't researching new manufacturing techniques. Of course, they're also undergraduate students, typically in mechanical or electrical engineering, from a public university. Of interesting note is that occasionally students get Master's by tackling something like a power tracker system. The design goes into lots of realistic engineering methods. Quite simply, there's a challenge in simply selecting a body shape; one must balance aerodynamics with power generating surface area and weight.

      Quite frankly, you'll never see untested technology being used in these sorts of endevors. Its far more profitable to start a company to research, develop, promote, produce and sell these sorts of technologies. And really, you don't need to race a car in order to test out your newfangled gallium-arcenide solar cells.

      That said, I believe that the well funded Michigan team brought in a researcher from germany for his new process that created mircopyramids or some such, increasing surface area over simple flat surfaces. Of course its incredibly expensive, but being sponsored by half the big motor companies in the area helps out.

      --
      I Browse at +4 Flamebait

      Open Source Sysadmin

    4. Re:what a waste by bad_fx · · Score: 1

      I disagree. Why do they have to be "more discrete projects"? The biggest problem as I see it with engineering is its dismally low profile - most people barely seem to have an idea what "engineering" even means. I'm all for anything that will raise it's profile. And I really can't see anything wrong with teaching engineers that it's ok to take the lime light, at least a little anyway.

      bah, just my $0.02

    5. Re:what a waste by tsangc · · Score: 4, Insightful

      It's sad that many engineering students end up doing things like PR, fundraisers, etc etc instead of


      I disagree. Proposing an project, selling the idea to stakeholders, marketing, project management etc are all parts of real life engineering. No engineer sits at a desk all day and works purely on technical design work. They're also excellent things to put on a resume for jobs later on.


      That and not everyone wants the same goals out of the project. They might be from other parts of the university like the business school or students who are looking to do something more people oriented instead of their normal engineering studies.

    6. Re:what a waste by ferds32 · · Score: 2, Interesting

      Quite frankly, you'll never see untested technology being used in these sorts of endevors. Its far more profitable to start a company to research, develop, promote, produce and sell these sorts of technologies.

      I beg to differ. Lake Tuggeranong College used a prototype CSIRO motor during two of their three World Solar Challenge (a similar race heald in Australia). sUNSWift built their own cells (litterally; if you've ever seen solar cells being built this is a huge achievement) and developed their own technique for sealing the cells in composites (i.e. encapsulation). Both these teams developed their own aerodynamics, at least some of their own electronics, own telemetry software and a myriad of other non-trivial engineering tasks. The whole is made up of many smaller parts. What makes these projects special is that they all join together into something terribly nice.

      --
      Tom Rowlands
      (Sorry, I can't sign this.)
    7. Re:what a waste by markfinn · · Score: 1

      I disagree. I can honestly say that I learned more about electrical, mechanical, and aerospace engineering from my 2 1/2 years in solar car than the rest of my time in school. Student projects required for a degree are nothing compared to designing a working electric vehicle with maximum power point trackers, full telemetry, and driver controls.

      Also keep in mind that we didn't just build cars, we designed them first. We had interdisciplinary design meetings where we would work together to come up with solutions to complex problems. For example, the choice of batteries affected the weight distribution and chassis/shell design, the array operating voltage, and the system bus voltage. Real world design problems aren't simple like in classes, they're part of a complicated system where everything affects everything else. Nothing prepares you for a real world problem as well as a real world problem like solar car.

      As for the thread about no new technology coming out of this, check out NGM among others. They developed an in-wheel motor for their car in Sunrayce '95 that is now being used in other electric vehicle projects around the world.

      Besides, anyone who doesn't think engineers could use some business and PR skill has never met a real engineer. By nature most of us can't even spell. Anything that broadens skills is a good idea.

    8. Re:what a waste by 4of12 · · Score: 1

      most people barely seem to have an idea what "engineering" even means.

      Yes, indeed.

      It was explained to me a while back just why it is that doting mothers like to be able to say "my son the doctor" or "my son the lawyer" and not "my son the engineer" - the same reason for the lack of recognition and widespread esteem for the engineering profession.

      The reason is that doctors and lawyers, professionally trained, offer their services retail direct to the public.

      Engineers, professionally trained, rarely offer their services to the public, rather they offer those services in a wholesale way to large corporations, governments and other entities.

      --
      "Provided by the management for your protection."
  8. Now ... by BlueTrin · · Score: 2, Funny

    ... you know the truth about route 66/Area 51 experiments and UFOs ...

    --
    Don't you know it is now both immoral and criminal to think beyond the next quarterly report?
    1. Re:Now ... by gantrep · · Score: 0

      I wish someone could neuralize that movie out of my memory.

  9. Re:GNAA ! by handybundler · · Score: 0

    perhaps you could pull the solar powered vibrator out of your anus.

    thanks in advance for your help.

    --


    a/s/l here. Sorry, adding domain tags to your s
  10. Some Results? by Talking+Goat · · Score: 3, Insightful

    I'm all for the innovation that is spurred in these sorts of competitions, but I'd really like to see what some of the real-world results have been from this kind of technological refinement. I hate to this that all this effort was being expended without any extrapolation into regular, everyday technological usage.

    --

    + G to tha Izzo, A to tha Tizee, Talking Giz-oat, Ya'll Bettah Feel Me... +
    1. Re:Some Results? by xenocide2 · · Score: 2, Insightful

      The payoff is experience. Undergraduates get real world experience designing, building and testing cars. With the growing need for alternative power cars, and the testing of the market, "regenerative braking experience" might be something to put on a resume for the budding mechanical engineer.

      --
      I Browse at +4 Flamebait

      Open Source Sysadmin

    2. Re:Some Results? by Anonymous Coward · · Score: 0

      I'm all for the innovation that is spurred in these sorts of competitions, but I'd really like to see what some of the real-world results have been from this kind of technological refinement

      What real-world results? They are all using off the shelf parts that are already available. This is more about mechanical engineering than anything else.

    3. Re:Some Results? by WillWare · · Score: 1
      I hate to this that all this effort was being expended without any extrapolation into regular, everyday technological usage.

      Here is a bunch of kids whose masters and doctoral theses might not be great big contributions to the quality of human life. Is that really so shocking? Aren't most theses pretty obscure and insignificant? Mine sure was.

      --
      WWJD for a Klondike Bar?
    4. Re:Some Results? by miratrix · · Score: 1

      Honda used to compete for World Solar Challenge in Australia (and more or less decimated the other competitors). From my understanding, a lot of that knowhow went into building of the Honda Insight, especially things like the motor.

    5. Re:Some Results? by Anonymous Coward · · Score: 0

      I for one made myself a solar powered boat. My school wasn't interested in the thing, so I just went, took a summer job at a machine shop, and raised the money. So there!

  11. Well it's great knowing about it NOW..... by aberant · · Score: 1

    Yah great timing.. i wish i would have known about this earlier today so i could actually see it.. living in chicago and all... why post this if it's allready happened???

    this is not a sig.

    1. Re:Well it's great knowing about it NOW..... by gmby · · Score: 1

      Do you watch your local news stations? I bet they told all the rest of the city about it on yesterday's late news...

      Get-out-of-your-basement!

      --
      I don't want a pickle; I just want a Motor-Cycle! A four foot cop arrived with a five foot gun!
    2. Re:Well it's great knowing about it NOW..... by Anonymous Coward · · Score: 0

      You can still see it...its not to hard to hop in your gas guzzling SUV and catch up with these cars that are avaraging around 30 mph.

  12. Kind of Ironic by Infinite93 · · Score: 4, Interesting

    I support renewable power and all (Use an iSUN battery charger for my portable Electronics), but think of all the non-renewable time and energy devoted to this type of event. Materials fabrication, student time spent, assembly. The fleet of gas powered cars following around for support of each of these. Research is important, but can't this be a little counter productive?

    1. Re:Kind of Ironic by Anonymous Coward · · Score: 0

      Let's just give up and start eatin' bark. Sigh.

    2. Re:Kind of Ironic by Anonymous Coward · · Score: 0

      Umm, sorry, but last time I checked, the sun is not renewable. And don't give me any of that big crunch baloney.

      As of February, BBC says universe to expand forever.

    3. Re:Kind of Ironic by Klimaxor · · Score: 3, Insightful

      by that means, everything is counter productive when it comes to solar power research. lets see
      Computers are used for CAD draw-ups, those computers were transported using some kind of fossil fuel. I don't really see how "student time spent" really falls in that catagory though. Without spending time, there is no research, without research, there is nothing new, and when there is nothing new, life just plain fucking sucks.

      --
      your sins into me, oh my beautiful one.
    4. Re: Kind of Ironic by I+Like+Swords!!! · · Score: 2, Informative

      Slightly off topic, regarding the parent's link...

      Able to scan the whole sky every six months, the Nasa satellite is producing maps of the CMB with unprecedented accuracy.

      I'm no physicist, astronomer or the like, but how can they POSSIBLY know if they are even close to being accurate? Accuracy requires one to be as close to the current answer as possible within a reasonable amount of error, but how can they possibly know what that answer is? There's no way to gauge it. (Or is there and I'm just being ignorant/dense/both?)

      Just something that leapt out as I read it.

      --------

      And back to the topic:

      In our time frame, the sun is as renewable as it gets. The chances of this race ever seeing the death of Sol (that is the name of it correct?) is astronomically oh-so-close slim to none. But then, I'm a cynic in that regard. Don't get me wrong, it would be a truly amazing event to witness (though I, myself, will most definitely not see it.. or did you know that already?). However, for that to happen, we need to get passed the threat of annihilating ourselves at the drop of a WMD... I mean hat, and move on technologically. Even then, that would take a major, no astronomical, leap in advancement to be capable of either time travel or living long enough to see the death of our Sun... which is in approximately how many billions of years?

      So no need to fear, the sun is MORE than likely to supply us with "unlimited" and "renewable" energy as long as we don't blast ourselves to kingdom-come beforehand. All we have to do is fully harness it.

      --
      .unsigged
    5. Re: Kind of Ironic by Anonymous+Freak · · Score: 1
      I'm no physicist, astronomer or the like, but how can they POSSIBLY know if they are even close to being accurate? Accuracy requires one to be as close to the current answer as possible within a reasonable amount of error, but how can they possibly know what that answer is? There's no way to gauge it. (Or is there and I'm just being ignorant/dense/both?)

      It comes from the common confusion of accuracy with precision. Obviously, the *MEANT* precision. They just didn't have the sense to know that's what they meant. It's amazing how often (seemingly) reputable sources confuse the two.

      (For those that don't know the difference, precision is the level of detail you achieve. Accuracy is how close you are to the true measurement/answer. So if I ask you what one plus one is; 1.9293875834967890457 is the more PRECISE answer, but 2 is the more accurate.)
      --
      Another non-functioning site was "uncertainty.microsoft.com."
      The purpose of that site was not known.
    6. Re:Kind of Ironic by Jeremi · · Score: 1

      True, but doesn't your criticism apply to just about everything people in the first world do? According to your logic, our only recourse is to not get out of bed in the morning.

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    7. Re: Kind of Ironic by Fred+Ferrigno · · Score: 1

      Well, to be pendantic, 2 is also the more precise answer, because, as a whole number, it implies an infinite degree of precision. Perhaps 1.9999 would be a better example of your point.

    8. Re:Kind of Ironic by SEWilco · · Score: 1
      ...think of all the non-renewable time and energy devoted to this type of event. Materials fabrication, student time spent, assembly.

      You think these things grow on trees?

      Which kind of time is renewable?

      Gasoline is a renewable resource. It just takes a long time for a specific carbon atom to be subducted under the crust and emerge again.

    9. Re:Kind of Ironic by Anonymous Coward · · Score: 0

      Students are learning and getting experience in issues surrounding their fields; it is essentially one big lab project. That is a waste of time?

    10. Re:Kind of Ironic by Anonymous Coward · · Score: 0

      Very true. I competed in ASC2001 and one of my teammates calculated our actual caravan fuel economy (chase vehicle, lead vehicle, support truck, logistics van, and of course the solar car) to be somewhere in the 2 MPG range. In any case it was lots of fun and a great way to expose the public to renewable energy.

    11. Re: Kind of Ironic by Anonymous+Freak · · Score: 1

      You're forgetting significant figures. 2, as written, has only one significant figure. Therefore, it isn't very precise. To a scientist, you never IMPLY any degree of precision. 2 is a very imprecise answer. If I am asking how much something weighs, and you respond '2 grams', I'd probably respond 'two point what?'. If I had written 2.0000000, it would be MORE precise, but still not AS precise as the long number I wrote. It would still be more accurate, though.

      --
      Another non-functioning site was "uncertainty.microsoft.com."
      The purpose of that site was not known.
    12. Re: Kind of Ironic by Fred+Ferrigno · · Score: 1

      Assertion One: Two is a whole number.

      Assertion Two: By definition, whole numbers are infinitely precise.

      If you take issue with either of these assertions, I would be very interested to see your explanation.

    13. Re: Kind of Ironic by Anonymous+Freak · · Score: 1

      I take issue with assertion two, that all whole numbers are infinitely precise.

      For example, my digital speedometer reads only in whole number increments. Does that mean that my car is only capable of going in speeds that are integers? My car will be going 55mph one moment, then immediately 56, with no smooth acceleration in between?

      There is no such thing as infinitely precise to scientists. In theoretical mathematics, maybe, but not science. (And the article is referring to measurements in science, not theoretical mathematics.)

      The scales used to measure tractor-trailer rigs are very imprecise, measuring usually in 100 pound blocks (or larger.) Those are whole numbers, does that mean that if I add my son to a truck, the truck's weight doesn't change? Because the weight is in whole numbers does not make it infintely precise.

      Again, I return to my "Two point what" comment. Any scientist will not accept 'two' as a 'precise' answer.

      --
      Another non-functioning site was "uncertainty.microsoft.com."
      The purpose of that site was not known.
    14. Re: Kind of Ironic by Fred+Ferrigno · · Score: 1

      By declaring the answer "two-point-nothing", you are declaring it a whole number. Ask me what the 64,143,532nd digit of two is and I can tell you without a second thought. This is what I call infinite precision.

      As for your speedometer, it approximates your speed with a whole number. Its measurement is very imprecise, and usually inaccurate. The number it gives, though it is not a precise approximation or measurement, is a very precise number.

      I wonder what makes a person a scientist. I've met doctors, biologists, and engineers who all do very scientific work, but the only group of people I've met that actually call themselves scientists are the computer sort, to which such distinctions actually are important.

  13. Am I the only one to notice... by rasafras · · Score: 3, Funny

    "last year's winner..." "every two years"

    You editors are really slipping here...

    1. Re:Am I the only one to notice... by digitect · · Score: 3, Funny
      "last year's winner..." "every two years"

      You editors are really slipping here...

      You must be new here.

      --
      There is no need to use a SlashDot sig for SEO...
    2. Re:Am I the only one to notice... by (startx) · · Score: 1

      Actually the races were typically every 2 years, so this year should be an off year. For some reason it's not though.

    3. Re:Am I the only one to notice... by aardwolf204 · · Score: 1

      It is a sad day for Slashdot when the parent post is the ONLY post marked funny. Whats worse is its scored 4.

      --
      Im dreaming ofa big bndwdth, That can resist the /.crowd.May ur days b merry & bright & may al
  14. Rules? by Comsn · · Score: 1

    Can they use wind power (at night) or sterling engines?

    I couldnt find any rules posted at the official website.

    1. Re:Rules? by Anonymous Coward · · Score: 0

      From 9pm to 6am the batteries are 'impounded' and wind power could not be used to charge them. Wind power could be used to charge between 6am and 9pm as long as the dimensional & reconfiguration rules were followed.

    2. Re:Rules? by SEWilco · · Score: 1
      From 9pm to 6am the batteries are 'impounded' and wind power could not be used to charge them.

      So at night use wind power and the trickle of power from the parking lot lighting...to put an electrostatic charge on the surface of the car (look, Ma, no Leyden jar!). Discharge it into the batteries in the morning.

    3. Re:Rules? by Anonymous Coward · · Score: 0

      Nope, the rules also state that all additional energy storage devices must be shown to be discharged prior to starting each day.

  15. Looks fun but by Timesprout · · Score: 1

    this looks more like the future of motoring

    --
    Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
    What truth?
    There is no dupe
    1. Re:Looks fun but by gantrep · · Score: 1

      Its very large windshield would be more expensive to replace I would think. As far as looks, in my opinion it does share some similarities with cars on the market right now. I am reminded of the Nissan Z350 and the Pontiac Aztek.

      Also, I think it would be sweet to drive one of those without the shell at all. Like an extreme convertible. The dangers of that would be obvious to a 6 year old, but people would do it if they could.

    2. Re:Looks fun but by Timesprout · · Score: 1

      Thats the real beauty of this car, friendly to the environment, choice of shells, and no doubt it will provide several highly entertaining Darwin award nominations

      --
      Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
      What truth?
      There is no dupe
  16. i saw it on my way to NASCAR by joehahn · · Score: 1

    gnarly little solar vehicle. designs havent seemed to change much for many years.

    --
    *I used to be quite irreverent and ignorant. I am probably much smarter now. I seem to realize this every 45 days or so.
  17. The missing slashdot link by aardwolf204 · · Score: 1, Funny


    The missing link

    1. Connect solar panel to battery terminals of flashlight
    2. Point flashlight at solar panel
    3. Turn on flashlight
    4. Profit!

    --
    Im dreaming ofa big bndwdth, That can resist the /.crowd.May ur days b merry & bright & may al
  18. Why Michigan Is Out by heli0 · · Score: 3, Informative

    "Michigan will not be participating in the 2003 American Solar Challenge. While qualifying for the race in Wisconsin, the car suffered steering system failures which did not allow SpectruM to qualify for and enter the race.
    ...
    The team is also exploring the possibility of racing SpectruM this October in the World Solar Challenge in Australia, as well as participating in the inaugural 2004 Phaethon Hellas Solar Rally held in Greece before the 2004 Summer Olympic Games in Athens."

    umich.edu/solarcar

    --
    Whenever the offence inspires less horror than the punishment, the rigour of penal law is obliged to give way...
  19. Wrong... by taped2thedesk · · Score: 5, Interesting
    I'm a member of the Michigan solar car team, and many, if not most, of the members on the non-engineering projects are from the business school or other academic units.

    In fact, the team makes a huge effort to reach out to non-engineering students, and we usually have excellent turnout.

  20. UM Solar Car Team statement by taped2thedesk · · Score: 4, Interesting
    I'm a member of the UM Solar Car Team - they sent the team members and sponsors this message a few hours ago:

    Michigan will not be participating in the 2003 American Solar Challenge. While qualifying for the race in Wisconsin, the car suffered steering system failures which did not allow SpectruM to qualify for and enter the race.

    Although not being able to compete in this summer's ASC was devastating to all those involved with the project, the team is committed to using this experience as a building block for future success.

    This is not the end for SpectruM! According to ASC race officials, SpectruM is "one of the most advanced and innovative Solar Cars ever built."

    During the next month, the team will be displaying SpectruM and the team's sponsors at the Concourse D'Elegance auto show in Cranbrook, the Woodward Dream Cruise and the Management Briefing Seminars in Traverse City.

    The team is also exploring the possibility of racing SpectruM this October in the World Solar Challenge in Australia, as well as participating in the inaugural 2004 Phaethon Hellas Solar Rally held in Greece before the 2004 Summer Olympic Games in Athens.
  21. Neat idea, but expensive by pctainto · · Score: 4, Interesting

    I am a part of my university's solar car program, but, unfortunately, we couldn't get our body made in time for the rayce. I did, however, make the 10 hour drive to see the cars in Chicago. If anyone is near where 'scrutineering' is in 2 years, they should definetely go see it.

    I helped out with getting various information on different teams' cars, and some of the prices for the things are a bit ridiculous. My university's car is costing less than $150,000, which I thought was pricey until some teams told me that their cars cost 1.5 Million (Queens) or 875,000 (Waterloo).

    I think most people think that the rayce is about showing people that we could have cars that run off of solar power, but that is entirely the wrong idea. The cars are made to show solar powers' abilities... if it can power a car, maybe it could do other things too (who woulda thought?)

    I wish I could've gone on the rayce, but seeing all the cars was cool enough. I just hope our car makes it in time for Formula Sun next year! (Formula Sun Grand Prix is a track race every year)

    http://www.formulasun.org

    --
    I think my principles are reachin' an all time low
    1. Re:Neat idea, but expensive by Anonymous Coward · · Score: 0

      their cars cost 1.5 Million (Queens) or 875,000 (Waterloo).

      Yes, but remember Queens and Waterloo are Canadian universities. So those figures are in Canadian dollars.

    2. Re:Neat idea, but expensive by Fred+Ferrigno · · Score: 2, Interesting

      My roommate is actually a member of Cal Poly's Solar Car Team (website waay out-dated, beware). I'm incredibly surprised to find out they're in the race. I haven't seen my roommate since school ended, but at that time they were rushing like mad to put the car together and my roommate didn't think they'd make it. They decided to scrap their old car and build an entirely new one for this race, but they didn't get started until this year.

      The funny part is that I've met the guys who work on it, I've seen their work shed, and it really killed the awe of seeing a solar-powered car. The whole thing seems pretty simple when you think about it. It's a car frame with some solar cells attached to a motor. Well, it's not that simple but it's close. I can't comment on the other cars, but about the most complex system they have in the car is the motor control and diagnostics (basically, a digital speedometer).

      Of course, I don't mean to take away from anyone's accomplishments. I know for a fact that my roommate and the rest of the team (well, the active ones) put a lot of time and effort into the car, on top of and occaisionally in spite of their coursework. I can't wait to see how the race turns out. Go Poly!

    3. Re:Neat idea, but expensive by beaverfever · · Score: 1
      their cars cost 1.5 Million (Queens) or 875,000 (Waterloo).

      Yes, but remember Queens and Waterloo are Canadian universities. So those figures are in Canadian dollars.

      ...so it's tree-fitty ann two-bucks, four-coppers american, respectivitily.

  22. How about FUEL-CELL races ??? by zymano · · Score: 2, Insightful

    I am never interested in Solar car races but Fuel Cell Cars would peak my interest since cars could be using this technology in the coming years.

  23. This race is really hard..... by spj524 · · Score: 2, Funny
    According to the rules, participants must listen to a looped version of the Official Theme Song the entire 2300 miles....

    That's rough.

    Seth

  24. Re:Rules? Wind Power?! by seanthenerd · · Score: 1

    How do you use wind power on a car? Wind turbines wouldn't work, maybe a sail?

  25. A sighting by WillWare · · Score: 2, Informative

    My wife was in Braidwood IL on Sunday visiting her mom, eating lunch at a restaurant along Route 66. As they ate, they saw seven or eight of the cars go by, with chase cars etc. She said they were all very aerodynamic-looking, and she wondered if they'd be picked up by high winds. Lots of windy weather out there; the previous week there'd been tornado watches next door in Indiana.

    --
    WWJD for a Klondike Bar?
    1. Re:A sighting by ferds32 · · Score: 1

      As they ate, they saw seven or eight of the cars go by, with chase cars etc. She said they were all very aerodynamic-looking, and she wondered if they'd be picked up by high winds.

      As it turns out they aren't picked up by the wind that much at all! (Which is good. :-) Heavy vehicles, particularly coaches, with their low sides, are much more of a concern. Road trains (like a semi-trailer with four carridges) can sometimes be a bit scary but not too much of a problem. I've never heard of the main canopy of a solar car even lift, let alone fly off. If they did it would indicate poor aerodynamics.
      --
      Tom Rowlands
      (Sorry I can't sign this)
  26. Two Years? by Gleng · · Score: 1, Funny
    The American Solar Challenge, which is only held every two years.

    Every two years, eh? Does that mean the previous challenge's entrants just keep going when they reach the finish line?

    --
    "Proudly Posting Without Reading The Article"
  27. University of Michigan by Anonymous Coward · · Score: 0

    The University of Michigan failed because it had to accept some less qualified solar cells that rated higher on there point system.

  28. The problem I have for this race.... by DonaldBeckman817 · · Score: 5, Interesting

    The problem I have for this race is that it allows for very little innovation. Storage of energy via flywheels overnight is prohibited, you are limited on how many batteries you can store, what type you can use, and how you use them. You are prohibited to use any solar nighttime charging, star-light or IR charging, or any other innovative way to charge during off time, as your battery box has to be removed at the end of the day and impounded. You are also limited of which type of solar cell you can use. New processes for solar cells have been invented and are in current commercial production that make it much more efficient per sq foot, but you are limited to using old cut-wafer solar cells that have been around for many years. There is one company making contueous ribbon cells (the 'wafer sheet' is drawn from a solid chunk into a ribbon similar like fiber optic glass is drawn into a string from a solid rod) that would be much better suited to the dimension of a car, but you cant use any of that modern technology. This race if more of a contest of who can make the lightest car body and go the furthest on X amps of battery and solar cells, rather than who can make the best solar technology automobile.

    1. Re:The problem I have for this race.... by ferds32 · · Score: 1

      This race if more of a contest of who can make the lightest car body and go the furthest on X amps of battery and solar cells, rather than who can make the best solar technology automobile.

      The problem with allowing everyone to go and do entirely their own thing is that eventually it boils down a contest of money. Whoever has the most money, generally speaking, wins. Fortunately solar racing has up until this year, or maybe last, been relatively immune to these problems thanks to both very immature technology and a sensible, but non-draconian, set of rules. The rules for the World Solar Challenge are extremely flexible compared to those for any other car race. The aim of the race is first and foremost to showcase solar and high-efficiency technologies and, as you say, to encourage innovation. There is much innovation to be had with the existing rules.
      --
      Tom Rowlands
      (Sorry I can't sign this)
    2. Re:The problem I have for this race.... by pj737 · · Score: 1

      Ah, very true. I always thought the solar car race applied to furthering accomplishments in aerodynamics - and nothing more. The rules do make it difficult to innovate.

    3. Re:The problem I have for this race.... by MtViewGuy · · Score: 1

      I agree on that! The vehicles in this race doesn't sport the type of regenerative system to keep the battery charged like what you see on the Toyota Prius (original and the upcoming 2004 model). I think the organizers of the World Solarcar Challenge should eventually allow regenerative systems because that will allow the solar-powered car to go a long way even if the sky is cloudy.

  29. UM Solar car speculation... by stienman · · Score: 4, Informative

    The UM solar car, SpectrUM, has four wheel steering - the rear wheels are servo actuated with the front being mechanical linkages. It is alos a two person car - the tradoff is that you can have a larger solar array if you carry two people.

    I got to see them in a test run a week or two ago, and it's very odd to see the car moving in one direction, but pointing 10-20 degrees off its path. The race page indicates that steering failure caused the car not to finish the prequalifier - probably due in part to their more complex system.

    As a note, the previous car did have four wheel steering, but the rear two wheels were locked during the races. I understand the reason is that the fairings (covers to keep wind drag down) became too large and the drag was greater than the benefit of having four wheel steering.

    There is a ton of technology in the cars - both in and on the cells and within the shell - which you can't see because they like to keep an edge over other teams. Even though the cells appear to be flat on the back they are designed to take light in at a particular angle (or as close as one can get to that angle) and so I assume the four wheel steering is to enable them to point the cells more effectively into the sun.

    -Adam

    1. Re:UM Solar car speculation... by Anonymous Coward · · Score: 0

      I was kind of a satellite team member of the Michigan team while the previous car (MPulse) was being developed. The same system (four-wheel steering) caused problems before the qualifying rounds in 2001, and the car crashed and had to undergo major repairs at the last minute. That is why the rear wheels had to get locked down for all races. They ended up fixing it in time and getting 1st in the ASC and 3rd in the WSC.

      It's a shame to see they weren't able to qualify, but I'm sure they will come through for the other races. This team is no stranger to tragedy, in the last few years or so they've lost a trailer into the ocean, and had their entire work area (and everything in it) burn down, not to mention all sorts of experimental technology failing at the last minute, and they've always come through in the end.

  30. Solar Rally! by GoRK · · Score: 1

    I see them almost every year when they come through here. I guess I'll have to call to find out when they expect them - Their website doesnt show dates they are supposed to meet the stops.

  31. This is right near where I work by Lord_Dweomer · · Score: 1
    Awesome, I should be able to see them race. Now I just need to bring a bucket of mud and a paintball gun. Just kidding....but actually now that I think about it....how cool would it be to have a video game with people racing in solar cars, and your job is to cover them with paint and mud to try to slow them down and obscure their vision so they crash? Errr......its late......sleep..............

    --
    Buy Steampunk Clothing Online!
  32. wrong and wrong. by Goonie · · Score: 1
    First, it is correct that old clunkers put out way of the smog-inducing pollutants, unburnt hydrocarbons, and whatnot than a modern SUV. So, in terms of the local environment, the SUV driver is doing better.

    However, in terms of carbon dioxide emission, which most scientists regard as the primary cause of global warming and most Americans stick their head in the sand over, the clunker will be way better.

    And, finally, have you considered the possibility that the polluntants created in manufacturing a new car for our clunker-driving might be lower the extra pollution of its continued operation when compared to a new car?

    --

    Any sufficiently advanced technology is indistinguishable from a rigged demo
    --Andy Finkel (J. Klass?)
    1. Re:wrong and wrong. by Anonymous Coward · · Score: 0
      most Americans stick their head in the sand over

      Fuck you, bigot. Preach your blinkered hate elsewhere.

    2. Re:wrong and wrong. by toddestan · · Score: 1

      Why don't you guys look up some facts?

      My car, a "clunker" is a 1988 Nissan Stanza. It is well maintained mechanically, and it passes inspections easily.
      http://www.fueleconomy.gov/feg/noframes/4 410.shtml
      It puts out 7.70 tons a year of greenhouse gases with average driving, getting ~25MPG (I get around 27MPG myself, but I may drive more highway)

      Lets take a modern SUV, like a 2003 Ford Explorer V6:
      http://www.fueleconomy.gov/feg/noframes/18170 .shtm l
      It puts out 11.30 tons of greenhouse gases, and gets 17MPG.

      Looks like my old clunker wins.

      Too bad the site doesn't go further back than 1985, but even a 1985 Cadillac Seville:
      http://www.fueleconomy.gov/feg/noframes/ 435.shtml
      With a 4.1L V8 is only putting out 10.30 tons a year of greenhouse gases, so it is still beating the SUV. And lets not even get into super SUVs like the Chevy Suburban.

      So I say there is no problem with older cars on the road, provided of course that they are well maintained.

    3. Re:wrong and wrong. by StressedEd · · Score: 1
      Of course, you could go the whole hog and get a "smart", less than 4 liters per 100km (about 70MPG) (*). That is a real, and achivable distance. Smart car enthusiasts have clocked nearly 80MPG in actual use.. Puts any SUV to shame.

      (*) dependinf on if you are talking UK/US Gallon / Mile, which is of course why SI was invented in the first place.

      --
      Be nice to people on the way up. You will meet them again on your way down!
  33. American Solar Challenge? by psyconaut · · Score: 1

    And ~50% of the teams are Canadian? ;-)

    Actually, don't the Canadians often win this event?

    -psy

  34. A sport I'd be interested in... by ChristianBaekkelund · · Score: 2, Insightful

    Now, it's a "sport" like this that I could actually get interested in...if only this were on ESPN more often, or similar, I'd definitely be watching such a whole lot more.

  35. Why? by Anonymous Coward · · Score: 0

    Then we couldn't have seen the Pug in Black... Frank rules!

  36. Energy Budget by Bios_Hakr · · Score: 2, Insightful

    Small rant follows:

    Why have mechanical linkages up front only to have servo-activated linkages in the rear? Seems like having servos would eat into your energy budget pretty quick.

    People have to realize that electric cars should not have power anything. What is the point of trying to be environmentally concious when you are blasting your AC during the summer? You just can't do it.

    If you want to make a statement about saving the planet, then just buy a gasoline powered car with rack-and-pinion steering, manual windows, no AC, no radio, etc... You get all the benifits of gasoline and the added bonus of using as little of it as possible.

    --
    I'd rather you do it wrong, than for me to have to do it at all.
    1. Re:Energy Budget by SN74S181 · · Score: 1

      Shouldn't you further order it or customize it with special less-comfortable seats? To prove you really care or something??

      Get some bumper stickers if you want to 'make a statement about saving the planet.'

    2. Re:Energy Budget by Tyler+Eaves · · Score: 1

      You've never been in the south have you? When it's 95 degrees and humid, not having A/C is NOT an option.

      --
      TODO: Something witty here...
    3. Re:Energy Budget by Big+Bean · · Score: 1

      The trade off goes both ways. Having electrical systems eats ups energy like you said, but electrical systems typically weigh much less than mechanical systems, therefore making the vehicle lighter, therefore increasing fuel efficiency. So in a lot of cases in an electric car using electric systems ends up saving you power. In a gasoline powered car the electric system is run off of the alternator which has very little effect on gas mileage (AC, maybe, being an exception). If you want to test it go out and run a tank of gas with your radio off and never use the power windows. They run a tank of gas with the radio on and use the power windows as much as possible...you won't see a difference in gas mileage, as long as all other conditions are the same. Buying a car with rack-and-pinion steering, manual windows, no AC and radio would mean buying an old car, which in turn would mean worse gas mileage.

    4. Re:Energy Budget by stienman · · Score: 1

      Gee, you must be right. There's absolutely no way a servo mechanism could possibly be nearly as energy efficient as a mechanical linkage.

      Unless, of course, you think through the problem and discover that it can and is.

      But why find out, when you can go around indicating that it's not only impossible but stupid to even try.

      If you want to make a statement about human intelligence and preconcieved notions - oh wait, you've already done that.

      -Adam

    5. Re:Energy Budget by Anonymous Coward · · Score: 0
      You've never been in the south have you? When it's 95 degrees and humid, not having A/C is NOT an option.

      No, you just don't think it's an option. I've lived and driven through that weather (and worse) with no A/C and no problem.

    6. Re:Energy Budget by pizen · · Score: 1

      You've never been in the south have you? When it's 95 degrees and humid, not having A/C is NOT an option.

      I had a car one summer in Atlanta with no A/C and it's possible to stand it. Just roll down all the windows and drive as fast as possible.

  37. Well by PHPhD2B · · Score: 3, Insightful
    If they have clouds? Well, mostly clouds do not equal complete darkness ... the fact that photovoltaic cells are frequently called solar cells does not mean that you have to see the sun in the sky for them to work ... they are cells, meaning they convert light into electricity. Cloudy -> less light -> less electricity but NOT a standstill.

    As far as the engineering aspects go, I have a couple rhetorical questions:

    How realistic is it that a bunch of students will be able to

    1) develop new types of photovoltaic cells?

    2) develop new, more efficient electric motors

    Those are the kinds of things that have been through a lot of development already and will need tons of resources in terms of finances, facilities and manpower. It is wholly unrealistic to expect a group of undergrads (and possibly grads) to make any sort of strides in those areas.

    What the students are doing well is taking existing technology and putting it together in well-developed and increasingly well-refined packages.

    Making technical progress isn't always about developing an even fancier motor or PV array. Technical progress is often about finding new ways to put together existing technology.

    People who complain about undergrads not researching new types of PV cells simply have no concept of what they're actually asking, and certainly have no appreciation of the ingenuity of many of the Solar Car designs and the technical developments they in many ways represent.

    --
    --I am Sun Tzu of the Borg. Resistance is feudal.
  38. Obligatory Fanboy Rah Rah by jimhill · · Score: 1

    Go, Missouri Miners! If your solar car can get you out of Rolla, just keep going!

    --
    Learn to spell: nickel, missile, lose, solely, amendment, speech, kernel, probably, ridiculous, deity, hierarchy, versus
  39. I've got a solar-powered car by anon*127.0.0.1 · · Score: 1, Funny

    It uses stored solar energy in a form called "gasoline".

    Bet it would do pretty good in this race, too.

    --
    I am NOT a man!
    I am a free number!
  40. new technologies by Fred+Ferrigno · · Score: 5, Insightful

    The problem is, any time some new technology comes out that improves solar efficiency, every team has to have it or they have no chance. These cars are already ridiculously expensive, and if you let the teams go hog wild, the winner would by decided by their budget rather than talent or effort -- well, more than it is already.

    1. Re:new technologies by SN74S181 · · Score: 1

      Somewhere in this topic I read somebody claiming this whole race was more about 'showcasing what solar power can do.'

      That doesn't jive with the rules, it seems. If you don't let every team go hog wild, you end up with just another feel-good College Sports event.

    2. Re:new technologies by jandrese · · Score: 1

      Maybe they should have two classes. A "traditional" class which must conform to all of these rules (and be stuck in 1995), and an "unlimited" class, which has very few (if any) non-safety related limitations.

      Heck, did you see how they're even outlawing technologies that people are commonly using today, like NiMH batteries? When you can buy the technology at Target (the best rechargable batteries are the NiMHs), I think they should allow it in the race.

      --

      I read the internet for the articles.
    3. Re:new technologies by Anonymous Coward · · Score: 0

      Part of the reason NiMH batteries are no longer allowed is because they're difficult to work with... Texas A&M had severe problems in 2001 when they didn't care for the NiMH batteries properly and trailed the pack the whole way despite an excellant mechanical system.

      Also, they do have two classes: Stock and Open. Of course, Open is not as unrestricted as you're talking about here, but believe me, it's plenty hard enough to get one of these cars together without having unlimited technology. This race is primarily to give students the opportunity to understand a really complicated system and put it all together. It does not need to be any more complicated than it already is.

      - Bianca (University of Kentucky Solar Car Team and ASC 2001 Observer)

  41. i drove in the rayce two years ago.... by oktane · · Score: 1


    This story brings back memories. Those were the good old days. What a useless post I just made!

  42. Happened in 99 by Anonymous Coward · · Score: 2, Informative

    At "Sunrayce 99" (ASC used to be called Sunrayce) there was severe rain on 8 out of 10 race days. I was there. Average speed for the race dropped to about 20mph. From D.C. to Orlando, FL it was one wet mess.
    List of prior races.

  43. If the Editors had posted this.... by Anonymous Coward · · Score: 0

    [ I submitted the following as a story on Saturday. Plenty of links and info, but it got passed up. ]

    Solar Car Race - Chicago to California

    We all know that solar power is cool. Even cooler is when you use it to go 80mph on a freeway, with the power consumption of a hairdryer! The American Solar Challenge unites teams from many Universities in the goal of racing their custom-built solar-cars from Chicago to California.
    That's 2300 miles along Route 66! They start Sunday morning in Chicago, but you can check out the official schedule to see when the cars will be passing through your state. If you're in Chicago now, the cars are on public display (while last-minute tuning continues) at the Museum of Science and Industry.

    Google has a number of related items. For photos and blogs, try these: ASC daily photos, ASC dialy diaries, a Stanford blog.

    For the first time this year, 2-person cars will be entering the race. Unfortunately, only two of these passed the scrutineering tests: The Stanford Team is racing a 2-person back-to-back configuration. Here's a list of races held in the U.S.A. in the 90's. A similar race in Australia is less student-oriented.

  44. In case of slashdotting... by Anonymous Coward · · Score: 0

    There's a mirror here.

  45. Schedule by Anonymous Coward · · Score: 0

    Bro, here's the schedule.

    Can't help mentioning that I submitted a story Saturday (in time to see the cars on display) but it didn't get accepted by the editors. IT did have a link to the schedule too...

    Solar Car Race - Chicago to California

    We all know that solar power is cool. Even cooler is when you use it to go 80mph on a freeway, with the power consumption of a hairdryer! The American Solar Challenge unites teams from many Universities in the goal of racing their custom-built solar-cars from Chicago to California.
    That's 2300 miles along Route 66! They start Sunday morning in Chicago, but you can check out the official schedule to see when the cars will be passing through your state. If you're in Chicago now, the cars are on public display (while last-minute tuning continues) at the Museum of Science and Industry.

    Google has a number of related items. For photos and blogs, try these: ASC daily photos, ASC dialy diaries, a Stanford blog.

    For the first time this year, 2-person cars will be entering the race. Unfortunately, only two of these passed the scrutineering tests: The Stanford Team is racing a 2-person back-to-back configuration. Here's a list of races held in the U.S.A. in the 90's. A similar race in Australia is less student-oriented.

    1. Re:Schedule by GoRK · · Score: 1

      Thanks very much!

  46. I can't believe anybody hasn't mentioned this! by WIAKywbfatw · · Score: 1

    Ryan Kingsbury writes "The world's longest solar car race kicked off to a sunny start today in Chicago! The American Solar Challenge, which is only held every two years, runs 11 gruelling days along historic Route 66. Race updates can be found at the official site. One big surprise was that last year's winner (University of Michigan) didn't make it through prerace qualifications. This will certainly give some lower budget teams a chance at gold. Details of qualifications can be found here."

    So, the race is held every two years. It kicked off today. But last year's winner didn't qualify?

    Perhaps that's because they were expecting the next race to be in 2004?

    --

    "Accept that some days you are the pigeon, and some days you are the statue." - David Brent, Wernham Hogg
  47. Re:fucktard by Fred+Ferrigno · · Score: 1

    Someone care to look up the efficiency of lightbulbs?

    On a side note, I once built a flashlight for the blind. I'm dead serious.

  48. Solar Challenge Revs Up on Route 66 by rpiquepa · · Score: 1

    Nature also wrote an article about the American Solar Challenge 2003. This summary of Nature's story contains photographs coming from the ASC Photo Library, but read Nature's article for more technical details.

  49. The problem's still the cell efficiencies by Moderation+abuser · · Score: 1

    Sure, you can spend a fortune on specially selected cells which are 17% efficient, but most people will be stuck with 10% efficiency and that means very large areas and lots of cells, which are expensive, to generate reasonable amounts of power.

    A better solar solution for many applications is solar thermal rather than photovoltaic. Higher collector efficiency (80%) on small scale vacuum tube panels typically used for domestic water and central heating and higher conversion efficiency to electricity for big plants (28%).

    --
    Government of the people, by corporate executives, for corporate profits.
  50. Winner Of The Solar Race by SEWilco · · Score: 1

    As usual, the Solar Race winner, which traversed the course, in a single day is Sol.

    1. Re:Winner Of The Solar Race by Anonymous Coward · · Score: 0

      Sol was disqualified for breaking the speed limit the entire distance.

  51. That's the nature of racing by Moderation+abuser · · Score: 2, Insightful

    And what spurs development. Everyone is looking for a technical advantage over the other guy, no matter what that is. I don't see it as a problem that one team wins because they've put together a better technical solution. It's not as if we're talking about driver skill or anything.

    The amount of effort you put into something is irrelevant if you're making that effort in the wrong direction.

    --
    Government of the people, by corporate executives, for corporate profits.
  52. Aerodynamics? by Simon+Brooke · · Score: 2, Interesting
    What surprises me is it looks to me as if these cars are getting less, not more, aerodynamic with time. Take the Eclipse team. Their Eclipse 1 and 2 vehicles look like a solar car I would design - teardrop shape low to the ground with enclosed roadwheels. Their three and four designs are essentially flat plates relatively high above the road with a bubble in the middle for the driver, and in version four the road wheels are unshrouded, and there's no attempt to round off the body edges to reduce vortices.

    The MIT teams evolution is similar if less extreme. The current car is a moderately streamlined high-deck-and-bubble job with its wheels unshrouded. The 1999 car has a similar body but shrouded wheels.

    In fact, more or less streamlined high-deck-and-bubble designs seem to be the theme of this years race. These vehicles look hugely vulnerable to crosswinds.

    --
    I'm old enough to remember when discussions on Slashdot were well informed.
    1. Re:Aerodynamics? by |>>? · · Score: 2, Interesting

      That would be because at low speed, Aerodynamics is mostly a waste of time. If you hit 100km/h, then it begins to matter.

      This is why when Porche made it's self-erecting spoiler, it only popped up at 140km/h - so people started speeding - so Porche did a firmware upgrade to make it come up at 100km/h.

      --
      |>>? ..EBCDIC for Onno..
    2. Re:Aerodynamics? by jollespm · · Score: 2, Insightful

      I did computer simulation for a car on SunRayce. The single most important variable in the design of the mechanics of the car is weight. You could have made the car look like a brick and it wouldn't have mattered, if it was light weight.

      Our car was tested in a wind tunnel and had a CD of 0.05 or something crazy like that. For reference, most modern automobiles are in the .25-.32 range. Unfortunately for our car it was heavy.

  53. Go Waterloo! by RobinH · · Score: 1

    Let's hear it for Midnight Sun from Waterloo! From their site:

    The Team is currently sitting in first place with two meadia[sic] stops behind them. The car has peformed exceptionally well as the team moved from sixth to first during the first day.

    Excellent work guys, and good luck to all the teams!

    --
    "I have never let my schooling interfere with my education." - Mark Twain
  54. My friend is going to a race in Australia by croftj · · Score: 1

    I have a friend who will be racing in a 2100 mile solar car race in Australia in either August or September. Pretty spiff for a highschool project.

    --
    -- Many men would appreciate a woman's mind more if they could fondle it
  55. WWTGS? by FuzzyDaddy · · Score: 1

    Thomas Gold's arguments based on thermodynamics have conclusively shown that it is impossible to get free energy from sunlight, hence solar powered cars would never work.

    --
    It's not wasting time, I'm educating myself.
  56. damn you /. by (startx) · · Score: 1

    I was reading the asc site to check on the status of my school, when the site became unbelievably slow. Fearing the worst I looked at slashdot, and sure enough it's the top story. Damn yous guys!

    1. Re:damn you /. by Anonymous Coward · · Score: 0

      leave it to rose-hullman to fu@% it up for the rest of us

  57. Another solar car race starts tomorrow... by Mosasaurus_Maximus · · Score: 2, Informative

    The Dell-Winston Solar Challenge starts tomorrow just outside of Austin, Texas and will be travelling across The South to central Florida...

  58. Re:shitwad by Anonymous Coward · · Score: 0

    Someone care to look up sense of humor, lack of?

  59. But, I thought you said... by skia · · Score: 2, Funny
    The American Solar Challenge, which is only held every two years...
    One big surprise was that last year's winner...


    Umm, I don't think that means what you think it means.

    --

    --

  60. What if its cloudy? by dlosey · · Score: 1

    You do the same thing you do if your car runs out of gas - you push it.

    Now imagine seeing that - a line of futuristic looking solar cars with guys running behind it pushing it.

  61. Definition please? by Anonymous Coward · · Score: 0

    What is a maximum power point tracker? How do you get more power from a solar array that is never at the "perfect" angle to the sun.

  62. I live in Claremont by Eraser_ · · Score: 1

    I live in Claremont, and as such, got to see all these cars come in last year. It was impressive to see what the engineers came up with the power their cars, shaving off a few watts here and there to preserve power (or increase speed :). Lots of very bright individuals were around just chatting with the crowds. I can't wait to see the ending of this race again, just to look under the hoods of those human bakeries.

  63. DOE = Dumb Ass! by DammitBeavis! · · Score: 1

    DOE = Dumb Ass!

    Regardless of what Slashdot's headline might imply, the SunRayce, or "the American solar challenge" is only a trial race for the real Momma-Jamma; The World Solar Challenge in Australia. http://www.wsc.org.au/ This is not an opinion. If you are even remotely interested in building a car that is even sort-of worth your time, you are building for the worlds, not some kiddy PR Race on side roads with posted speed limits.

    Why the Gripe? Because the mo's at DOE have the race going East-West not North-South. (The worlds go from north to south, away from the equator - with the sun to your back) So if you build a car to preform well in the worlds, It wont do as well in the US. You either shape your car to maximize sun going from the left to right in the back of your car, or from back to front on the left side of the car.

    This has always been a conflict with the American race. They want to increase PR and have the race go through big towns, but engineers want a race that maximizes sunlight to the car. When you are building a car with a materials costs that are close to or more then a million US dollars, every extra bit of energy counts. And when you have that many sponsors, they will expect a good return on their investments. You gotta win, and you want to do well against the big boys in the worlds.

    Next race, they'll probably have the race go through a rain forest or something....

    Must be a bunch of UM grads running this thing.

    (so why the lack or flexibility? 'cause it's a kiddy race. Wanna see some real cars? goto the worlds.)

    -grumble

  64. Go Team PrISUm! by ddkilzer · · Score: 1

    Shameless plug for my alma mater: Go Team PrISUm!

  65. Solar Website by BarenakedAdam · · Score: 1

    The website that is linked to in the original post is out of date. The Official Website has more information.

  66. UMR by Anonymous Coward · · Score: 0

    GO ROLLA!

    our sport teams suck, but at least we have one team that's 1st in something...