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User: denzacar

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  1. Oh! Here's a nice one. on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    http://singularityhub.com/2010...

    Commercial solar panels are available at 18.5% efficiency, if we replaced all the highways in the lower 48 states with solar panels of the same surface area then we'd get about 14 billion kilowatt hours of electricity. That's roughly three times what the US uses each year, and about equal to what the world consumes each year. The cost? Brusaw is aiming for each road 12' by 12' panel to cost around $10,000 and for the average lifespan of the panel to be about 20 years. There is roughly 29,000 square miles (~800 billion square feet) of road surface to cover. We need roughly 5.6 billion panels to cover that area. That's a price tag of $56 trillion! Brusaw points out, however, that at current retail electricity prices the road would pay for itself in about 22 years. Quicker if we used panels with greater efficiency.

    He also says that asphalt roads aren't that much cheaper. He supposes that an asphalt road costs about $16 per square foot and lasts for 7 years. If the solar panel road lasts for 20 years, it would be about the same cost per year.

    He's not quite right about that. First, $16 per square foot is about right for highway strength asphalt roads. Your average residential roadway is much closer to $2-3 per square foot , however. Also, many roads (highways or otherwise) aren't replaced every 7 years, but rather every 10 to 20. In any case, even if we accept Brusaw's numbers ($16 per square foot, 7 years versus $10,000 for 144 square feet every 20 years) the solar cell road is still about 50% more expensive ($3.47 per square foot -year versus $2.29 per square foot-year). Now, if petroleum prices continue to rise then maybe asphalt roads will be as expensive as $10k solar panelsâ¦but right now that's simply not the case.

  2. Re:Why? on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    Exactly!

    1. Make electricity with solar power.
    2. Use electricity to make bitcoins.
    3. Pay for solar power in step 1 with bitcoins in step 2.
    4. PROFIT!

    Finally! It all makes sense! They pay for themselves!

  3. Re:Magic is Magic on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    Storm water is a pollutant depending on what it is flowing over or leaching through.

    It's flowing over storm-drains of EXISTING ROADS. Not over nuclear disposal sites or something similar.
    Creators are padding their project to seem even more eco-friendly than it is, when fact is that said storm-drains are already in place (in which case this is a waste of money) OR they are not needed (in which case this is AGAIN a waste of money - AND PADDING).

    Not all concrete leaches C02. Make it out of geopolyer concrete a C02 sink closely related to the long carbon cycle

    Except it kinda does.

    Some case study geopolymer concrete mixes based on typical Australian feedstocks indicate potential for a 44â"64% reduction in greenhouse gas emissions while the financial costs are 7% lower to 39% higher compared with OPC.

    So in theory it reduces greenhouse gas emissions by about a half, while the costs go from 7% lower to 39% higher.
    That's a pretty big gap there. Almost 50% of a MAYBE cheaper MAYBE more expensive.
    Sadly, that study is paywalled.

    But this one isn't. And it says it's only "approximately 9% less than comparable concrete containing 100% OPC binder"

    So, to sum it up.
    CO2 reduction is either negligible, or "about 50%", while the price is either negligibly lower OR significantly higher.

    And now the fun part...

    IT IS COMPLETELY UNNECESSARY!!!
    Even if it is 0.0001% of CO2 at 0.0001% cost to regular, Portland cement, concrete - IT IS NEW AND ADDITIONAL AND UNNECESSARY.
    And it would need to be done under every single square meter of "solar roadways".

    Any CO2 saving made by the solar power gathered (and most of it would go on drying the road for snow and rain) would be far overshadowed by CO2 released to create this new network AND the power it would suck up during the night.
    AND on top of that the efficiency of those solar cells would degrade much faster than that of the regular ones - cause they would accumulate oil, soot from exhausts, mud, rubber from the tires...
    All that stuff that we don't have to care about right now, would become a HUGE efficiency problem.

    Which gets us to the heaters...

    If you have to invest some energy to raise the surface temp to just above freezing which then allows both traffic and restarting the solar panel it might be worth it.

    No, it would not.

    We are talking WINTER.
    Shorter days. Less sunlight.
    Meanwhile, it can snow FOR DAYS AND NIGHTS.

    This contraption would be trying to melt AT LEAST 16 hours of snow to gain 8 hours of useful light - IF... IF it stopped snowing during the day.
    Solar cells are at around 20% efficiency AT BEST, and they admit that a pretty big part of their tiles IS NOT covered with solar cells.

    So how much are they producing?

    Currently, the full size hexagons are 36-watt solar panels, with 69-percent surface coverage by solar cells. This will become 52-watts when we cover the whole surface when we go into production. When we add piezoelectric, they'll be capable of producing even more power. Also, as the efficiency of solar cells increase, more power will be converted.

    We tested the heaters over the winter with a DC power supply that provided them with 72-watts. This was an overkill and made the surface warm to the touch on most winter days. We still need to experiment with different voltages at different temperatures, to determine the minimum amount of power required to keep the surface above freezing. Remember, they don't have to heat up to 85 degrees like the defroster wire in the windows of your car: they only have to keep the surface warm enough to prevent snow/ice accumulation (35 degrees?).

    They ke

  4. Re:Why? on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    You got a link to that?

    They keep claiming "We are not yet able to give numbers on cost."
    I'm having a feeling they will come up with some bullshit estimate along the lines of "as the efficiency of solar cells increase, more power will be converted - ergo it will pay for itself."

  5. Re:Why? on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    What about if we pay for it with space cash?

  6. Re:Light pollution? on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    Very little.

    They will fail long before that.

    It costs far more than ANY form of road (except maybe suspension bridges) and it is far harder to maintain WHILE it is far less durable.
    And on top of that the quantity of electricity it produces is negligible.

  7. Re:Magic is Magic on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    It seems by approaching an optimistic (hopeful) and uneducated public they found a million dollars worth of sucker money

    That's a BINGO!

    Someone needs to take steps to save the planet.

    HAD they made this to be installable as easily as a macadam road, and as robust and scalable, there is a VERY slight chance that somewhere down the very long road this would actually benefit the environment.
    Mainly because something like that is pure science fiction.

    Instead, they made this in such a way that it must sit on a HUGE foundation of concrete, with both access shafts along the whole thing AND storm-drain channels (storm-water is apparently a pollutant according to their video) AND every tile has LEDs and heaters so the road would stay dry in the winter.

    Except... concrete leaches CO2.
    And tiles can't heat up if there is no sun - so they will suck coal/oil/gas/nuclear during the winter in hopes of heating up enough to catch meager couple of hours of sunlight as that's the time when days are the shortest.
    And since it is envisioned that ALL markings will be presented with LEDs instead of simply painted on (yeah... good luck with that) - these babies would be sucking on the coal titty the rest of the year as well.

    This is a case of a couple of delusional hippies with a "dream" and egos big enough that they've just kept on stacking more and more on the project needlessly trying to reinvent the wheel.

    The wheel being - "You want solar parking lots and roads? Put the panels on the side of the road and on top of the parking spaces. Park in the shade. Drive in the shade. There! Where's my million dollars?"

  8. So homosexuality IS a mental illness? on Misogyny, Entitlement, and Nerds · · Score: 1

    And that there is no reason to believe that pedophilia is a rare mental illness any more than we once believed homosexuality was a rare mental illness.

    So you ARE arguing that homosexuality IS a mental illness?

    It's just that we once wrongly thought that it was rare?

  9. Re:Thermodynamically Impossible on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    False, the solar roadway is part of the power grid, it means for a limited time it will draw additional power from the grid in winter to melt the snow and then it switches back to normal operation.

    Well, I guess winter IS a limited period of time.

  10. Re:Thermodynamically Impossible on Solar Roadways Project Beats $1M Goal, Should Enter Production · · Score: 1

    essentially combines the labor-intensiveness of a cobblestone road with the specialized labor requirements of a hardwood floor

    IF ONLY!

    The plan is to have large concrete access channels underneath the hexes.
    Big enough for a man (or a wild dog, or a bear, or a nest of snakes, or wasps...) to crawl through.

    Cobblestone roads?
    These are concrete crawlspaces filled with easily harvestable copper and covered with electronics with built-in heating elements.

    You know how roads tend not to spontaneously catch fire then burn for miles underground and you can't put them out with water cause they are electrified?
    Well if this ever makes it off the parking lot you will.

  11. Re:That's not a proof of a widespread anything... on Misogyny, Entitlement, and Nerds · · Score: 1

    Sure.
    There weren't any gay men or women prior to 1974.

    Also, are you really arguing that homosexuality actually IS a mental disease?

  12. Well, at least Chu won't be disqualified... on Misogyny, Entitlement, and Nerds · · Score: 1

    ...for not phrasing his loaded question in a form of a question.

  13. You said fuck - that's rape on Misogyny, Entitlement, and Nerds · · Score: 0

    So maybe Mr. Chu can tell us where exactly where this "rape culture" is, because it sure as fuck isn't anywhere where I've ever been. But maybe he hangs with a different crowd.

    You said fuck in the same way someone might say "hell".
    Hell is a place of torture.
    You obviously subconsciously equate sexual intercourse with torture.
    Rape is a form of torture.
    Ergo, what you see as only sex is actually rape.

    Ta-DAH!

    Or... You referred to fucking as an insult.
    Insult is a verbal form of violence.
    Rape is violence.
    Ergo, what you see as only sex is actually rape.

    OR...
    You live in a culture which assumes that it is perfectly normal to treat "fuck" as an insult - which is a verbal form of violence.
    Swearing is also a culturally forbidden act which implies power to the very act of swearing. Same goes for sex.
    All the things that adults forbid you to do, see, read or think about - are REALLY big things in adult world.
    Sex, guns, drugs, money...

    Which instructs the more aggressive individuals (men and boys - because of all the testosterone there) through positive feedback (heroes in our culture tend to be both physically fit and sexually attractive) to equate sex with violence and power and strength.
    Ergo, you live in a culture which promotes proving one's power and strength through the combination of sex and violence.
    I.e. Through raping.

    I could probably spin some even finer bullshit but I hope this will do.

  14. That's not a proof of a widespread anything... on Misogyny, Entitlement, and Nerds · · Score: 1

    Well... maybe of a very thinly spread argument... on your part.

    As for proof of a widespread pedophilia culture, I suggest you read this article analyzing the topic as it is treated in the DSM-V

    That article describes a slight change in definition of pedophilia AS A MENTAL DISORDER.
    Which "proves" a "widespread pedophilia culture" about as much as a redefinition of a unicorn as "naturally occurring horse-like creature with a single horn in its forehead, possessing as of present date scientifically unexplained powers" - proves a widespread existence of unicorns.

    It's a redefinition trying to address the question "If and adult does NOT have a sexual intercourse with a child in the forest, though he or she MAY feel a desire to, and nobody else is there to NOT see or hear it - does that person actually have a mental disorder that needs treatment?"

    It's a proof of someone realizing that, whodathunkit, some people manage to control their urges.

  15. It is not even a false dichotomy. on Author Charles Stross: Is Amazon a Malignant Monopoly, Or Just Plain Evil? · · Score: 1

    "Malignant - Or Just Plain Evil" is asking if Jeff Bezos is still beating his wife.

  16. Ding-ding-ding! Give that man a... some gelatine. on Cambridge Company Unveils 3D Printed "Fruit" · · Score: 1

    From TFA:

    In this process, the liquid or puree from the fruit is mixed with a very small amount of a substance called sodium alginate, then quickly placed into a bowl of soluble calcium salt. At this point the liquid or puree forms tiny spheres, almost like caviar, in which a thin skin holds the shape of the liquid inside.
    Apple Juice After Spherification

    Apple Juice After Spherification

    What the 3D printer does is combine these little spheres of flavor with other spheres of the same or varying flavor, to form customized âfruitsâ(TM), which can taste and look however the the user desires.

    http://en.wikipedia.org/wiki/A...

    As a food additive, sodium alginate is used especially in the production of gel-like foods. For example, bakers' "Chellies" are often gelled alginate "jam." Also, the pimento stuffing in prepared cocktail olives is usually injected as a slurry at the same time that the stone is ejected; the slurry is subsequently set by immersing the olive in a solution of a calcium salt, which causes rapid gelation by electrostatic cross-linking. [citation needed] A similar process can be used to make "chunks" of everything from cat food through "reformed" ham or fish to "fruit" pieces for pies. It has the E-number 401.

  17. Umm... no. Cause this is not US or UK law. on German Court Rules That You Can't Keep Compromising Photos After a Break-Up · · Score: 1

    This should have far reaching ramifications when it comes to copyright law.

    It is German law.
    And as such, it is civil law and not common law.
    There are many fine points to compare but the main one is - civil law does not care much for precedents.
    It's case by case basis, each to be trialed on its own terms, following a set of established codes.

    I.e. Just because ONE judge decides something in one case, does not suddenly mean that all judges in the future should just follow his/her example.
    So... the decision made in this case has no further ramifications beyond this single case.

  18. Re:Somebody needs to buy... on The Physics of Hot Pockets · · Score: 1

    Maybe his microwave has a "30 seconds" button, and a rotating +/- dial instead of buttons 1 to 9?

  19. Re:Somebody needs to buy... on The Physics of Hot Pockets · · Score: 1

    Put the bag in, turn microwave on. Wait 3 minutes.

    Add/subtract ~10 seconds depending on the season and microwave's power rating.
    750-800 W in the summer - ~3 minutes.
    750-800 W in the winter - ~3 minutes 10 seconds.

    Also... Not every single kernel is supposed to pop. That's why you get a bag of them instead of an EXACT number of kernels.

    If you're refilling your bags with popcorn bought by a pound...
    Pour the corn in a glass or cup first, pour a little oil over it (teaspoon or so will do for ~100 grams of corn), add spices you use, cover the glass/cup with a saucer/small plate and shake it for about 10 seconds to spread the oil and spices over the kernels.
    Pour the contents of the cup/glass into the paper bag you're using, close the bag with a toothpick.

  20. Re:Who would have guessed? on Harvard Study Links Neonicotinoid Pesticide To Colony Collapse Disorder · · Score: 5, Informative

    http://www.colostate.edu/Dept/...

    Some Pesticides Permitted in Organic Gardening

    By Laura Pickett Pottorff, Colorado State University Cooperative Extension horticulturist and plant pathologist

    If we think organic gardening means vegetables free of any chemical pesticides, we don't have the story quite right.

    Organic gardeners can use certain pesticides -- chemicals that are derived from botanical and mineral-bearing sources. These chemicals may be highly toxic, but they break down more rapidly than common chemicals, such as the Sevins, Malathions and 2,4,Ds.

    The use of botanical and mineral-bearing pesticides, even though some are toxic, also can be incorporated into an Integrated Pest Management (IPM) approach to growing crops. IPM relies on a variety of pest control means rather than on one product or method. The pesticides discussed below are appropriate to include in IPM programs.

    Just as the more common chemicals are given toxicity ratings -- CAUTION, WARNING or DANGER -- so are chemicals from botanical and mineral-bearing sources. "CAUTION" means low toxicity or completely free from danger; "WARNING" means moderately toxic and "DANGER" means highly toxic. The toxicity rating for each pesticide is provided in the paragraphs below.

    BOTANICAL PESTICIDES

    Nicotine Sulfate

    Nicotine is extracted from tobacco or related Nicotiana species and is one of the oldest botanical insecticides in use today. It's also one of the most toxic to warm-blooded animals and it's readily absorbed through the skin. (Wear gloves when applying it, follow label directions and keep pets away from application areas.) It breaks down quickly, however, so it is legally acceptable to use on organically grown crops.

    Nicotine sulfate is sold as a 40 percent nicotine sulfate concentrate under trade names that include Black Leaf 40 or Tender Leaf Plant Insect spray. Nicotine kills insects by interfering with the transmitter substance between nerves and muscles. It's commonly used to control aphids, thrips, spider mites and other sucking insecticides on most vegetables, some fruits, flowering plants and ornamental shrubs and trees. Roses are sensitive to nicotine. Choose alternate pest control measures when treating insects on roses.

    Nicotine sulfate has a DANGER warning.

    Sabadilla

    Sabadilla, another botanical insecticide, is derived from the seeds of the sabadilla lily. The active ingredient is an alkaloid known as veratrine.

    Sabadilla is considered among the least toxic of botanical insecticides, but its dust can be highly irritating to the eyes and can produce sneezing if inhaled. No residue is left after application of sabadilla because it breaks down rapidly in the sunlight.

    Sold under the trade names Red Devil or Natural Guard, Sabadilla is effective against caterpillars, leaf hoppers, thrips, stink bugs and squash bugs. The insecticide is labeled for use on many vegetables. It has been assigned a CAUTION rating.

    Rotenone

    Rotenone is a resinous compound produced by the roots of two members of the Leguminoceae family. Its common use is to control various leaf-feeding caterpillars, beetles, aphids and thrips on a wide variety of vegetables and small fruits. A slow-acting chemical, rotenone requires several days to kill most susceptible insects, but insect feeding stops shortly after exposure.

    Rotenone is moderately toxic to most mammals, but is extremely toxic to fish. It's widely used to poison "trash" fish during restocking projects. It has been assigned a CAUTION rating.

    Neem

    Neem is a botanical pesticide derived from the neem tree, a native of India. This tree supplies at least two compounds, azadirachtin and salannin, that have insecticidal activity and other unknown compounds with fungicidal activity. The use of this compound is new in the United States, but neem has been used for more than 4,000 years for medicinal and pest

  21. Re:You don't need this mask on Anti-Surveillance Mask Lets You Pass As Someone Else · · Score: 4, Funny

    Don't forget your clown shoes, pants and gloves to hide your gait.

    Also, a wig might be useful. A bright orange or green one.
    You'd be practically invisible in a crowd.

    As long as that crowd is at a clown convention. An Apple store might do in a pinch too.
    Hey... it worked for Captain America and Black Widow.

  22. Don't be silly, citizen... on Anti-Surveillance Mask Lets You Pass As Someone Else · · Score: 1

    Labeling is so... 20th century.
    Why would they ever need to label you in any way, if they can simply know who you are and where you are at any given time?

    http://slashdot.org/story/11/0...

    It's just a matter of picking a law you've certainly already broken. Or taking you in for "acting in a suspicious manner".

    Besides... that mask is useless without appropriate clown shoes, big blow-up clown gloves and clown pants to hide your gait.
    http://slashdot.org/submission...

  23. No... it's not about Microsoft. Or security. on Why Microsoft Shouldn't Patch the XP Internet Explorer Flaw · · Score: 1

    This is even dumber.

    The idea that this entire opinion piece runs on is that same old story where money belonging to a single large business is worth more than the sum of the money belonging to its customers.
    Because... Freedom, Justice and the American Dream*.
    As opposed to godless communist pinko consumer rights satanists.

    Cause that is what the "argument" that "Microsoft cannot feasibly continue to support Windows XP indefinitely" boils down to - nonsense.

    Why can't they support it? Is it the technological ability? Did they fire everyone who knew how to code? Who made those other, "safe", products then?
    Is it that they can't release secrets about their obsolete products to new staff? What?

    Other than "it costs XY dollars to do ZQ fix", which other reason could there be?
    He even suggests spending money on new Microsoft, Apple or Linux products (free as in pay for training and new hardware infrastructure including hiring or retraining your support personnel) - as only possible solution.

    So clearly... money is the issue. And the solution.
    When a company spends it - it's an issue.
    When customers spend it - it's a solution.

    So, just as clearly, it's not the customer's money but company's money that's precious here.
    Microsoft's, Apple's... whoever. People should save money to companies that sell them products.
    Customers should just shut up and switch to new software (and hardware to run it) already and support the economy by doing their duty as customers - by spending money.

    Or are they America-hatin commie-pinko terrorists?

     
     
     
    *fauxtriotism added to accentuate the nonsense of the underlying argument of said opinion piece.

  24. Re:5000 people annually on Minesweepers Robotic Competition Aims For a Landmine-Free World · · Score: 4, Informative

    It's not the deaths.
    It's not even the limbs lost.
    It's the fact that some unknown area of land is completely unusable and unsafe. And I mean COMPLETELY.
    Maybe you can look at it from a distance.
    If you're looking for a "cost-effective" reason and saving couple of thousand lives per year is just not enough of a reason for you.

    Here in Bosnia we have lots of mines and unexploded ordnance laying around thanks to that lovely party we had back in the '90s.
    We also have plenty of forest fires each summer.

    Now, besides the fact that we are severely lacking in the firefighting department (BOTH of our military helicopters used for firefighting tend to use up all the FUEL that the army has in first two days; trucks only go where there are roads, and many trucks are vintage '60s models repaired with such ingenious inventions as welding a crowbar onto a gearshift cause the original got torn off long ago) - places where fires tend to burn also tend to be littered with mines.
    Or not. Nobody knows for sure.

    Imagine trying to put out a forest fire with a backpack of water and a broom.
    Now imagine that forest also firing off a bullet or two, from time to time, in a random direction.
    Or a mortar shell exploding. Or the ground being covered in mines.
    You know? Fun!

    So what happens? Forests burn.
    Until they burn close enough to be put out, or help comes from the neighbors in surrounding countries, or it rains.
    Thing is, if they are burning close enough - that's cause they are close enough to where people live.

    That's fires...
    Guess what happens when rains start? You got it!
    Landslides. Now you (maybe) have mines and UXOs where there were none just a weekend ago.
    Who the fuck knows, right?
    It's been 20+ years since the start of the war.

    The best part?
    Finding out that MAYBE there were mines couple of hundred meters from where you used to go to work, and right in the yard of a place where you're supposed to go to work.
    A decade after the war ended. In the middle of a populated, urban, area. Right next to a main road.
    Maybe there are mines there. Nobody knows anymore.

    Then again, not so long ago several hundred rounds of ammunition and couple of grenades were found inside a locked room in the main building of the Presidency.
    Nobody opened that door for a decade. Nobody NEEDED to open it for a decade.

  25. Yes it will. Your 9 becomes a 6 with males there. on Male Scent Molecules May Be Compromising Biomedical Research · · Score: 1

    Not in the cases where you measure LEVELS of sensitivity to pain in some way.
    Which basically includes every endurance or stress test.

    They are "zeroed out" to a higher level.

    Now your mice endure longer or don't start reacting as soon as they should have. So all your results are off by a third.
    On top of that, someone tries to repeat your experiment - and their mice react differently.
    There goes the peer review.

    And that's just the pain. What else is influenced by inducing more stress?