Slashdot Mirror


The Year In Ideas

popo writes "The New York Times Magazine has a review of the year's most original and interesting ideas. They include "The Tornado in a Can" ("A contained cyclone, it turns out, is very useful for pulverizing things") and David Stevenson's real-life proposal to dig to the center of the Earth. by sinking heavy iron through the Earth's mantle."

49 of 143 comments (clear)

  1. Yeah, like we haven't fucked up the planet enough by corebreech · · Score: 4, Insightful

    Let's start melting holes in it!

    And why? So somebody can get an 'A'!

    Which reminds me of that great scene in Star Trek TNG Evolution where Guinan busts Wesley crawling around her 10-forward, and after mumbling something about Dr. Frankenstein, asks him about the grades he's getting.

    He replies that he always gets an 'A'.

    And she replies, "So did Dr. Frankenstein."

    (and lest anybody think my using the word fuck in the subject is out of line, I refer you to none other than the FCC who says it isn't such a bad word afterall.)

  2. Discover has almost the same article by meltoast · · Score: 4, Informative

    Discover Magazine has the "top 100 scientific achievements of '03". It also has the most convuluted index possible for said achievements!

    --
    if you don't feel better tomorrow, we'll just cut your legs off about here. - Theodoric of York
  3. there already is a slashdot story... by iamplupp · · Score: 4, Informative

    ...on the tornado in a can

    1. Re:there already is a slashdot story... by HolyCrapSCOsux · · Score: 2, Funny

      mmmmmmm..... Pulverized chicken feet....... Yummy!!!

      --
      0xB315AA8D852DCD3F3DCA578FD2E0BF88
  4. We could build it... by ToddUGA95 · · Score: 5, Funny

    On the moon and call it a "Death Star." Then we hold the world ransom for....one million dollars!

  5. Re:Ahem by KrispyKringle · · Score: 4, Informative
    Probably because it wouldn't work as well. The idea behind the iron thing is apparently that once you get the initial crack going and fill it with molten iron, gravity just takes care of the rest. With a laser, you'd have togo farther and farther down with the crack, which could present an issue to your equipment when the temperature rises to 4000C. And if you don't, you lose power the farther you get from the drilling point.

    Plus, even if the laser heats the earth, it doesn't exert any force on it; the molten iron heats and then presses down on the crust to allow it to break through.

    I'm also not sure what a laser would accomplish once you break through the crust. Since at that point the temperature is already really hot, and the earth is, if I remember right, molten, the issue is presumably the pressure to get your probes down farther (which the iron accomplishes), not the ability to break through the earth itself.

  6. Someone had to say it... by philthedrill · · Score: 5, Funny

    But I think the farmer (with his Tornado in a Can idea) has been watching too many Roadrunner cartoons.

    1. Re:Someone had to say it... by weston · · Score: 3, Funny
      Or Mystery Men....

      After enlisting additional help from a carny weapons designer (Tom Waits -- !!), who contributes such non-lethal devices as Tornado in a Can and a Blame Thrower, they head off to storm Frankenstein's lair.
  7. Picture/Mockup of actual Windhexe machine by bogie · · Score: 3, Informative
    --
    If you wanna get rich, you know that payback is a bitch
  8. Breaking the laws of physics by Anonymous Coward · · Score: 4, Funny
    A garbage-processing plant in Pennsylvania will go online with its Windhexe next month; the machine can turn two tons of trash into one ton of sterile powder.

    Wow, it's a device that violates conservation of mass!

    1. Re:Breaking the laws of physics by Politburo · · Score: 2, Informative

      Hi. If you're serious, please see this thread.

    2. Re:Breaking the laws of physics by sketerpot · · Score: 2, Informative
      We have a device that can turn several tons of various materials into zero tons of the same types of materials! It's called a space shuttle.

      Nobody said anything about conservation of weight....

    3. Re:Breaking the laws of physics by jcr · · Score: 2, Insightful

      Wow, it's a device that violates conservation of mass!

      No, the other ton is water vapor that gets driven off.

      -jcr

      --
      The only title of honor that a tyrant can grant is "Enemy of the State."
    4. Re:Breaking the laws of physics by 4of11 · · Score: 2, Insightful

      Well, if you want to get real technical about it, the space shuttle weighs nearly as much in orbit as on Earth. Weight is defined as the force of gravity on an object according to the equation G*m1*m2/d^2, where d is the distance between masses m1 and m2. Relative to the radius of the earth, the increase in d is rather marginal when you go from the surface of the Earth to the orbital altitude of the space shuttle. The only reason it seems like there is no gravity is that the space shuttle is essentially in free-fall (it just is going so fast it keeps "missing" the earth).

      But that's just being silly :-)

    5. Re:Breaking the laws of physics by gooball · · Score: 2, Informative
      Wow, it's a device that violates conservation of mass!

      Mass isn't conserved, mass-energy is. See nuclear bombs. However one ton of mass becomes rather a lot of energy.

  9. Journey to the center of the earth by Camel+Pilot · · Score: 4, Insightful

    The one thing i did not understand about the journey to the center of the earth proposal is how would you attach a sensor package with telemetry to a pile of goo at several thousands of degrees f.

    Seems like a rather minor snag.

    1. Re:Journey to the center of the earth by Camel+Pilot · · Score: 5, Funny

      Furthermore the article states there is still a need for some "clever engineering" concerning the instrumentation.

      Sure and "clever engineering" is all thats stands between us and terraforming Venus.

      So can I get an "Invention of the year" award for my idea of using one of the moons of Jupiter (i am sure the greenies would whine about using ours) as an extrasolar vehicle/colony so that humans can explore the local region of our galaxy? The propulsion idea still requires some "clever engineering"

    2. Re:Journey to the center of the earth by Absurd+Being · · Score: 3, Informative

      Using the Leidenfrost effect. The temperature of the iron will hold steady at whatever the melting point of iron is. Another blob of metal at the center of the iron will hold at its melting point. Continue with a couple more layers of shielding of this type, and your sensor pack can be held at an operable temperature for long enough to reach the center of the earth.

      --
      Karma: Excellent^(-t/Tau), Tau=Wittiness/Trollishness
    3. Re:Journey to the center of the earth by bluesnowmonkey · · Score: 2, Funny

      The one thing i did not understand about the journey to the center of the earth proposal is how would you attach a sensor package with telemetry to a pile of goo at several thousands of degrees f.

      Dude, that's the easiest part. Just slap a big ol' water cooling kit in there (and maybe some neons just for the hell of it).

  10. Windhexe? by Gudlyf · · Score: 3, Funny
    How long before Microsoft sues him for that name?

    Here's another page with some pictures of it.

    --
    Trolls lurk everywhere. Mod them down.
  11. SlipHead.com - Top Idea Exchange by Telluride · · Score: 3, Interesting

    Speaking of top ideas, check out SlipHead.com. Its an open forum for the free exhange of ideas - similar to the way the open software movement works. Get recognized for having the best ideas, and who knows, maybe you'll even catch the eye of an investor!

  12. Air Pollution? by Politburo · · Score: 4, Informative

    One thing I did not see in the comments on the original Tornado in a Can story is this:

    A garbage-processing plant in Pennsylvania will go online with its Windhexe next month; the machine can turn two tons of trash into one ton of sterile powder.

    Guess what. That other ton of material isn't getting destroyed. That doesn't happen. It's probably going into the air as (very tiny) solid particles. Now, since these particles are created from the very beginning of the process, are they also sterile? I would think not. I'm not saying this process is environmentally bad. I'm only saying that waste disposal never has a simple, clean solution.

    1. Re:Air Pollution? by chivo · · Score: 5, Informative

      Actually no. The other ton of "material" is probably just the water being evaporated during the breakdown process. It appears to be a closed system, so nothing is magically disappearing. On the other hand, I've only seen a couple of pictures so magical disappearances could be possible

      --
      Sometimes I feel like a nut... Ok so it's most of the time
    2. Re:Air Pollution? by random735 · · Score: 2, Informative

      it says the system removes moisture..any chance they're removing a ton (literally) of moisture from two tons of trash? doesn't seem impossible to me...water weighs alot.

    3. Re:Air Pollution? by Politburo · · Score: 3, Interesting

      Yes, water weighs 8.34 lb/gal. That means ~240 gallons of water would be in the two tons of trash. 240 gallons of water is ~32 ft^3. While I do believe I overlooked the water loss, I don't believe it could be all water.

    4. Re:Air Pollution? by Rasta+Prefect · · Score: 2, Insightful
      While I do believe I overlooked the water loss, I don't believe it could be all water.

      Why not? A siginificant portion of garbage is food waste and the like. This material tends to be > 50% water, so I see no reason the garbage as a whole couldn't be easily 50% water. Also, theres likely some rounding involved in going from 2 tons to 1. Like maybe two to 1.2, but1 sounded better.

      --
      Why?
    5. Re:Air Pollution? by Wordplay · · Score: 2, Insightful

      Keep in mind that 32 ft^3 is only a little over 3 feet on a side. That's not all that much when you consider the probable volume of two tons of trash.

  13. Re:Yeah, like we haven't fucked up the planet enou by SurgeonGeneral · · Score: 5, Informative

    That article you posted says that fuck can only be used as an adjective, which u clearly did not do. I fail to see why you would bother citing evidence that doesnt even support your position.

    --
    -- "Man is born free, and everywhere he is in chains." Jean Jacques Rousseau
  14. Well, no shit? by Lord+Kano · · Score: 4, Funny

    They include "The Tornado in a Can" ("A contained cyclone, it turns out, is very useful for pulverizing things")

    In other news, I have just concluded a study that has found that a glass of water, it turns out, is very useful for quenching thirst.

    Come one now, if they can clear trailer parks in 30 seconds, isn't this just a progression of logic?

    LK

    --
    "Hi. This is my friend, Jack Shit, and you don't know him." - Lord Kano
  15. Re:Yeah, like we haven't fucked up the planet enou by corebreech · · Score: 3, Funny

    You're right. It's only acceptible as an adjective. For instance, I can call you a fucking asshole, and that's OK.

    Thank you for that clarification.

  16. Tornado in a Can, industrial version by Animats · · Score: 4, Informative
    There's an industrial version installed at a University of Maryland agricultural test facility.

    This is basically a high-powered cyclone dryer. Cyclone dryers have been around for decades, but they're not usually run at power levels high enough to get grinding effects.

  17. Re:Ahem by 2.246.1010.78 · · Score: 2, Interesting

    but the iron is not going to get heavier on its way to the core. As far as I can remember the gravity that the iron feels is just the gravity from the sphere of mass below the iron, and so the thing should become lighter, regardless of its mass being the same.

  18. Wow! A personal connection by altairmaine · · Score: 5, Interesting

    It's sort of neat to see a story like this, because Dr. Stevenson was one of my advisors at Caltech. He's a great guy with a cool New Zealand accent and a wide assortment of knowledge about almost everything. But I can shed a little light on this, both because I know him and because I have a geology background.

    First, for the credulous, he's semi-joking. The physics of the iron sinking into the core is actually plausible, but his tone when talking about "generating a crack in the crust" is tongue-in-cheek. This would require a much larger nuclear detonation, say, than has ever been tested by anybody. The seismic consequences would be... bad. What's more, we aren't anywhere even close to being able to design probes that could survive such an environment and send messages back.

    To dispel a common misconception, the interior of the earth is NOT molten. Omitting some interesting boundary layers, the Earth is composed of the following chunks from the inside out: the inner core (solid iron alloy), the outer core (molten iron alloy), the mantle (solid rock), and the crust (we live on it). If you're curious as to how we know, it's because liquids and solids have dramatically different properties as far as transmitting seismic waves. I just found a decent site at JPL here that illustrates the earth's structure nicely, although it appears to have been written for grade schoolers.

    The idea that the mantle is liquid is one of the most widely held misconceptions about major geological concepts. It exhibits ductile deformation, so it flows something like a liquid, with a speed of centimeters or meters per year. Magma, however, results when rock is pushed up into the crust from the mantle - the decrease in pressure lowers the melting temperature. It can also be generated when water seeps into hot rocks - wet rock has a lower melting temperature. It is NOT evidence that the mantle itself is liquid.

    So why would this work? A large body of iron would be much denser than mantle rock, and at a hundred million kilograms, the net downward force would be considerable enough to force mantle rock out of the way. I'm too lazy to figure out the physics for this post, but I would imagine this is the content of the Nature article. The interesting question would be, "would ductile deformation occur quickly enough to get the iron down in a reasonable amount of time?" The answer, apparently, is 'yes'.

  19. Re:Ahem by KrispyKringle · · Score: 2, Interesting
    Well, you're right. In fact the force it feels is less, since it is the gravity from the mass below it minus that from the mass above it (if I'm not mistaken, if you had a perfect sphere, any object inside of the sphere feels zero gravitational force, since the pull from the larger amount of mass farther away on the one side (assuming its not perfectly centered) balances out the pull from the smaller amount on the closer side).

    Regardless, I don't think the plan is to get that far in that this really becomes an issue, but I don't know enough about geology to know how far down they plan to go. But assuming that the earth is molten once they break through the chewy, chocolate-coated outer crust (sorry, I haven't yet had breakfast), I suppose the amount of force needed wouldn't be as great anyway.

    If you can't tell, this was all speculation, i.e. I'm pulling it out of my ass. But that's my best guess.

  20. one equals two for small values of two.... by jefu · · Score: 2, Informative
    I'd assume, given what else was said in the article that the other ton is mostly water (with traces of other volatile compounds).

    But somehow the powdered brocoli just doesn't seem right. "I say it's spinach and I say the hell with it."

    If it works as claimed though, I can think of lots and lots of uses for it. Like maybe you could build something like a rototiller out of it (though you probably would have to mix in some larger bits to keep the powder from turning into cement when it gets wet).

  21. real details here: by Anonymous Coward · · Score: 2, Informative

    http://www.vortexdehydration.com/id28.htm

  22. billboards that watch you... rf noise? by hlee · · Score: 2, Interesting

    This is from: billboards that watch you

    Mobiltrak's technology relies on a little-known fact about car radios: they don't just receive signals; they also emit them. A car radio tunes to a particular station by mixing the signal from the ether with its own internally generated signal. It's that faint internal signal that the Mobiltrak dish picks up.

    Can someone explain this? From Mobiltrak's FAQ, it implies the "internal signal" is just RF noise - and that its noise signature is different depending upon the station you're tuned into. Is RF noise really that loud? If so, does it also mean its also theoretically possible to determine what any electronic appliance is doing?

    1. Re:billboards that watch you... rf noise? by jaoswald · · Score: 3, Informative

      The signal that is being picked up is not "noise" in the sense of "random noise" but rather "noise" in the sense of "unintentional emission."

      The signal that is being picked up is the "local oscillator" of the receiver in the car radio. Essentially, almost every radio receiver uses a heterodyne receiving technique. The incoming radio waves from all sources are "mixed" in a non-linear circuit with a "local oscillator" signal produce within the receiver. The non-linear nature of the mixing circuit means that signals appear at the frequencies which are the difference between the incoming radio waves and the LO frequency.

      For example, if you are tuning to FM frequency 104.1 MHz, the LO is tuned to a frequency of 114.8 MHz, creating a "copy" of the FM stations' signal at 10.7 MHz. This 10.7 MHz is called the "intermedicate frequency". Then, the actual circuitry to decode the radio modulation and create sound is designed to work off of the 10.7 MHz IF signal.

      That way, the actual tuning of the radio is done by changing the LO frequency over a range of about 90 MHz to 120 MHz, using digital synthesis techniques. The LO is a sine wave, so it is easy to generate. Whatever gets mixed to the 10.7 MHz gets turned into sound coming from your speakers.

      The way Mobiltrak appears to work is that most radios are not that well shielded, so the 114.8 MHz LO signal leaks out and can be detected by the Mobiltrak receiver. That LO signal contains no information, so it can't really tell if you are listening, but most people don't emit MHz signals from their car for any other reason.

  23. The word 'Fuck' has been fucked! News at 11! by bj8rn · · Score: 2, Insightful

    If the word 'fuck' isn't, according to you, considered such a bad word after all, then what's the point in using it anymore?

    --
    Hell is not other people; it is yourself. - Ludwig Wittgenstein
  24. My personal fav: PowerPoint makes you dumb by Jesrad · · Score: 2, Interesting

    Here is my favorite article of the collection.

    --
    Maybe we deserve this world ?
  25. Re:Ahem by Man+of+E · · Score: 2, Funny

    Yeah, but the iron would stay at the center of the earth, and with a laser you could build a tunnel right through the middle (since we're tossing out improbable scenarios anyway). Then with some "clever engineering" it could be stabilized and you could transport stuff through it. Such as flying pigs.

    --
    Ceci n'est pas une sig
  26. Geology Summary by fader · · Score: 3, Funny

    For those with too little time to read an admittedly informative and interesting comment, here's a quick summary: Earth has a crunchy center surrounded by creamy nougat and a crisp shell. Heavy stuff sinks slowly, but it's probably not a good idea to go breaking the planet.

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    - fader
  27. "PowerPoint makes you dumb" by fbform · · Score: 3, Insightful

    original article
    Seriously, amen to that. I'm an engineer, and I see similar examples everyday - decisions being made (and grants being awarded) on the basis of who has the flashier slides. I think we have finally brought Attention Deficit Disorder to the corporate level.

    --
    Time flies like an arrow. Fruit flies like a banana.
  28. Re:Yeah, like we haven't fucked up the planet enou by pipingguy · · Score: 2, Funny

    Guinan busts Wesley crawling around her '10-forward'

    Is that what they're calling it now?

  29. "William Speed Weed?" by theonetruekeebler · · Score: 2, Funny
    That's the author of the article on the Jules Verne Project. Is it just me, or does "Speed Weed" sound like a way to kill an afternoon down at the trailer park? Ghod bless 'im.

    Oh, and the project itself sounds cool as hell.

    --
    This is not my sandwich.
  30. There's a "D" in there? by theonetruekeebler · · Score: 2, Funny

    I've been reading it "Winhexe" all this time and thinking about a hexadecimal resource editor I used to use back in the Windows 3.1 days. I'm old and blind.

    --
    This is not my sandwich.
  31. Pressure also raises the boiling point of water. by adb · · Score: 2, Interesting

    The mantle is at really absurd pressures, on the order of millions of atmospheres. Water at this pressure does not become vapor, but rather Something Weird.