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User: ChrisMaple

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Comments · 11,051

  1. Re:No. on Towards a 50% Efficient Solar Cell · · Score: 2

    FWIW once the light is truly diffuse, it cannot be concentrated. This is fundamental physics, closely related to the laws of thermodynamics.

  2. Re:you only get 8,250wh out of that gasoline on Towards a 50% Efficient Solar Cell · · Score: 1

    And you'll be refilling that battery with energy made HOW?

  3. Re:2nd Summary on Canadian Scientists Bind High-Temp Superconductor Components With Scotch Tape · · Score: 2

    A path from this to practical room temperature superconductivity, though speculative, is obvious. Fuse buckytubes every hundred atoms or so. Anneal in hydrogen or water or whatever. The fusing holds the tubes in a fixed spatial relation, and where they touch between fused points superconductivity occurs. Braid the stuff together in long ropes, and "Voila!" superconducting wire.

  4. Re:Instead on Ask Slashdot: Best Computer For a 7-Year Old? · · Score: 1

    If you live in a high-rise and your son is playing Superman, you aren't going to have to be concerned with him much longer.

  5. Re:Not a job Threat on The Problems With Online Math Classes · · Score: 1

    Online courses are not a job threat to faculty at research universities.

    If you lose your student base, you cease being a university. You may be able to continue as a pure research establishment, but the odds aren't good.

  6. Re:I had the exact opposite experience on The Problems With Online Math Classes · · Score: 0, Troll

    So you're saying that until near the end of your career, you're doing an incompetent job of teaching. Furthermore, since you have presumably been taught by experts, you've failed to gain from them, and each generation of teachers starts out at a uniform level of incompetence, never learning from history.

    But that's the goal of modern education, isn't it? To leave its victims ignorant of history?

  7. Re:That's not today! on Human-Powered Helicopter Team Sets New Records For Altitude and Flight Duration · · Score: 1

    In addition to ground effect, they're inside a building. The walls also help bottle up the air under the vehicle.

  8. Well chronicled on DNA Analysis Suggests Humans Interbred With Denisovans · · Score: 1

    Hank Ketcham has reported on the menacing Dennisonian for 61 years, with the Wilsonian getting the Ruff end of the stick.

  9. Re:Maple Syrup is awesome on Police Probing Theft of Millions of Pounds of Maple Syrup From Strategic Reserve · · Score: 1

    Although if you overheat it it may carmelize and turn darker, the color is generally determined by when in the harvest period the sap is acquired. Later sap has more impurities, so it's darker and usually somewhat more flavorful.

    The concentration of sugar doesn't vary much in the final product; it's boiled just short of the point where it would crystalize.

  10. Re:Maple Syrup Strategic Reserve? on Police Probing Theft of Millions of Pounds of Maple Syrup From Strategic Reserve · · Score: 1

    I'm happy there are people that think the corn-based crap with artificial maple flavoring is adequate, because it reduces demand and therefor price. The real thing is about $15 a quart and it's worth it.

  11. Re:I'm in a nitpicking mood. on Microthrusters For Small Satellites · · Score: 1

    The trade is getting energy from substantial mass of fuel which also acts as reaction mass, for energy from the sun and a small reaction mass. Whether the power supply is heavy depends on how much thrust is produced. Granted the sun is heavy, but for satellite uses you don't have to take it with you.

  12. Re:One thing's for sure on Ask Slashdot: How Many of You Actually Use Math? · · Score: 1

    My 11th grade math teacher used "osculate" instead of "oscillate". Both have mathematical meanings, but this is silly. Spelling matters.

  13. Re:Field dependent requirement on Ask Slashdot: How Many of You Actually Use Math? · · Score: 1

    Except when the situation demands a more sophisticated approach, simple numerical integration suffices. Straightforward in any mainstream language.

  14. Not news on For Much of the World, Demand For Water Outstrips Supply · · Score: 1

    Aquifer depletion has been known for decades

    The central valley of California is practically a desert. Not as bad as LA, but still... An important source of water for the central valley has long been a pipeline from the Columbia River. Without this water source, one of the world's major food sources becomes ineffective. You can thank environmentalists when a dry central valley results in massive death by starvation.

  15. The real question is on Man Orders TV On Amazon, Gets Shipped Assault Rifle · · Score: 1

    What sort of person notifies a news organization when something like this happens?

  16. Re:Freedom of speech? on Telco Company Claims Freedom of Speech Includes Misleading Ads · · Score: 1

    If a person does not suffer damage, it would be wrong to allow him to win a lawsuit against a liar.

    For argument's sake, how do you distinguish a lie from a work of fiction? Do you wish to make storytelling illegal?

  17. Re:Hope Rogers loses on Telco Company Claims Freedom of Speech Includes Misleading Ads · · Score: 1

    American colonists were to stop stealing their land and expanding to the east (emphasis added)

    Chuckle.

  18. Re:U$A paranoid... on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    Stupid insults do not enhance your argument.

    The current economic mess is primarily the fault of Barney Frank with an assist from Chris Dodd. Sarbanes-Oxley drove in another stake, and Obama has been busy strangling entrepreneurs. To blame G.H.Bush the proper target is the prescription drug benefit. The Iraq war was/is a partial bungle, but it was not avoidable without very bad consequences.

  19. Re:Utterly Stupid on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    What is the generational difference between someone born in 1962 versus 1967?

    One quarter to one fifth generation. (joke)

    The concept of generation is key here because so much of a person's attitude comes from parents. A person absorbs lessons from a parent, particularly those lessons expressed often and strongly. From among those lessons, he passes on to his children only those confirmed in his own lifetime. So the terrible events in his parents lifetime that were prevented from recurring in his lifetime by the vigilance of his parent's cohort, are not confirmed and are not passed on. His children repeat the mistake that caused the evil his parents experienced. In a family there are no fractional generations and in 2 generations all but the most alert historical scholars are ignorant. --- Or at least, that's the hypothesis.

  20. Re:Income inequality. on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    Oh poppycock, you're talking out of your nether regions. In relatively free countries most poverty is caused by the immorality of the poor: laziness and destructive habits. Treating poverty as a "root cause" is claiming that poverty is a fundamental, not caused by something else.

    Jealousy is a bad thing, a personality defect. Poverty is a bad thing. Wealth is a good thing. Without the personality defect of jealousy, wealth inequality does not lead to misbehavior. It is typical liberal BS to claim that having some people rich and some poor is bad, with the implicit understanding that if the poor took everything from the rich it would all be OK. (And failing to recognize that the poor would soon destroy their ill-gotten gains and once again be poor. The liberal has a hidden belief that things would be fine if everyone were poor [excepting himself, of course.]). One thing worse than having both rich and poor, and jealousy of the rich, is people who play on jealousy to gain political power, and also those who deliberately start riots using the excuse of inequality.

    Incidentally, riots don't "just happen." In varying degrees, riots are planned, both at the high end by hidden leaders, and at the low end by people planning to loot during the chaos (I've heard such planning.)

    Wealth redistribution used to be a clear, stated goal of our government

    At the federal level, that is a vicious and deliberate lie. Read the Constitution of the United States.

  21. Re:Government needs to be slapped down again? on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    If you think Obama is to the right of Ronald Reagan, your understanding of politics is nonexistent.

  22. Re:Government needs to be slapped down again? on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    if you don't screw up like the British did in the 1770s you can get away with anything

    That hypothesis didn't work out very well for Lincoln, or Kennedy, or a number of US mayors. Who knows what other abominations people in power might have tried if the possibility of armed insurrection, or even a lone assassin, didn't exist?

  23. Re:Not necessarily on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    Wow. You make a point "every war ever fought was over money in one form or another" and contradict it in the paragraph immediately following.

  24. Re:Regulation caused the Great Depression on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    New products are one of the prime motivators of demand. Apple excepted, most large US businesses are not developing new products and most rich people are not funding new development because of 2 reasons: Obama is properly seen as a kleptocrat who will steal the profits of new developments, and regulatory attacks on those without political pull will derail new products. The rich are holding onto their money until the election: if Romney is elected, it will become safer to do business in the US, and they will do so. If Obama is re-elected, they'll put their money to work in a safer place (like Poland?) as the US enters the dark ages.

  25. Re:completely idiotic on Mathematician Predicts Wave of Violence In 2020 · · Score: 1

    The author, while making some reasonable points, does show himself to be a prime fool. Citing violence as a result of political instability is circular.

    The worst is "I'm not afraid of uprisings, he says. That's why we are where we are." How like an academic to believe that an uprising poses no risk of him ending up dead.