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Japan

Japanese Build Robot Toddlers 81

kgeiger writes "The Japanese birth dearth may be crashing their population and rendering kids a rarity, but never fear! Robotics researchers at Osaka University are building robot babies to learn how people are supposed to interact with young children. For anyone who has raised real kids, cyberkiddies would seem a cheat unless they come with "why? Why? WHY?" and "No!" infinite loops and no OFF switch."

Comment Re:It is time to call it (Score 2) 726

You're looking at it the wrong way. Those who chose a medieval future chose it for themselves, not for everyone. What's more, they are volunteering their many future helpless spawn to be economic prisoners of the minority who chose a reality-based reality.

So ladies and gentlemen, stop trying to create useful technology. Write home-astrology software. Start an Ayn Rand website. Hell, start a religion.

The ignoramuses are going to pay for being willfully stupid, right? Why shouldn't they pay you? Have you ever stopped to consider that L. Ron might be a role model and not the enemy? The guy got people to pay to worship atomic bombs and something called Xenu. Not bad if you ask me.

Comment Re:A modest proposal (Score 1) 489

The system is pay-as-you go, which as far as I can tell the boomer generation never agitated to change. It means that the boomer bulge will have to be paid for by the current working generation. The boomers never had to fund a bulge which is why pay-as-you go was their selfish preference as was a low birth rate which compounds the problem.

Comment Re:It's worse then that. (Score 4, Informative) 347

The problem can be with the T. The hot compressed gas cools to ambient over time, dissipating energy (seen as a loss of pressure). I suppose, though, the energy is used before much heat has a chance to leak away. Barring that the limit on efficiency is the mechanical losses in the motor you drive with the gas.

You don't need particularly high pressures to make it theoretically efficient. You may be thinking of heat engines based on Otto (piston) or Brayton (turbine) cycles where efficiency is related to the pressure and temperatures at combustion, the higher the better.

Comment Re:Single Engine Lockheed? (Score 1) 120

Lockheed has championed the closed wing idea for many years. Their concepts usually have 2 engines. Here are other images some dating back to the '80s:
http://aero.stanford.edu/Reports/Nonplanarwings/ClosedSystems.html
http://www.airmailmagazine.com/closed-wing-aircraft-designs (4th picture down)
http://up-ship.com/blog/?p=1986

Comment Re:Your tax dollars at work (Score 1) 118

The radius block repair involves (extrapolating from the article) 156 strips of aluminum about 1" wide, 10" long and mmm .080" thick. That's about 124 lbs of aluminum added. According to LockMart the Al/Li tank saves 7500 lbs so you are only eating 1.6% of the weight savings.

The NASA fellow mentioned that the problem was fracture toughness, a property not usually checked in quality tests. You can have bad material with high tensile strength and low toughness.

NASA

Low Quality Alloy Cause of Shuttle Main Tank Issue 118

BJ_Covert_Action writes "NASA engineers have finally discovered the root cause of the cracks that have been found on space shuttle Discovery's main external tank. The main tank, one of the 'Super Lightweight Tank' models developed by Lockheed-Martin, employs an aluminum-lithium alloy developed by Lockheed-Martin specifically for this application. The new alloy is used in various structural stringers throughout the SLWT design. Unfortunately, the batch of this alloy used in the tank that is currently mated with the Discovery shuttle appears to be of low quality. The alloy used in the stringers has a 'mottled' appearance, compared to the nominal appearance typically used in the main tank stringers (see picture in article). This appearance is indicative of a fracture threshold that is significantly lower than typical. NASA has determined, through testing, that this low grade alloy has only 65% of the fracture strength of the nominal alloy typically used. NASA engineers have devised a potential fix to the problem that they are currently testing to ensure the repair will cause no unintended consequences. NASA plans to have the Discovery shuttle ready to launch again by February 24th, 2011."

Submission + - Palladium to Steel: Drop Dead

florescent_beige writes: Researchers from Cal Tech and the Lawrence Berkeley National Lab have made a palladium-based glass that is both strong and tough. In fact, it might be the toughest material ever made.

Sadly, with current prices at $800/oz and a density 50% higher than steel, palladium won't be showing up in bridges airplanes, or spaceships anytime soon. Dental applications, maybe.
NASA

Submission + - Low Quality Alloy Cause of Shuttle Main Tank Issue (spaceflightnow.com) 1

BJ_Covert_Action writes: NASA engineers have finally discovered the root cause of the cracks that have been found on the space shuttle Discovery's main external tank. The main tank, one of the "Super Lightweight Tank" models developed by Lockheed-Martin employs an aluminum-lithium alloy developed by Lockheed-Martin specifically for this application. The new alloy is used in various structural stringers throughout the SLWT design. Unfortunately, the batch of this alloy used in the tank that is currently mated with the Discovery shuttle, appears to be of low quality. The alloy used in the stringers has a "mottled" appearance, compared to the nominal appearance typically used in the main tank stringers (see picture in article). This appearance is indicative of a fracture threshold that is significantly lower than typical. NASA has determined, through testing, that this low grade alloy has only 65% of the fracture strength of the nominal alloy typically used.

NASA engineers have devised a potential fix to the problem that they are currently testing to ensure that the repair will cause no unintended consequences. NASA plans to have the Discovery shuttle ready to launch again by February 24th, 2011.

Comment Re:capitalists take note (Score 1) 398

Always enjoy your ideas circle.

The distinction I see is between free market capitalism and other kinds of capitalism. Obviously (I think?), business is not a natural proponent of competition, it is a natural proponent of profits. And, once established, the most direct way for a business to boost profit is to kill all forms of competition.

Giving business all the tools it needs to shut out competition has been the thrust of the American right since Regan. Deregulation and privileged access to power have given the advantage to the established players. If the right really was interested in the free market, they would be focused on things that can help new companies drive existing companies out of business, not preserve them.

Not to mention their obsession with essentially unproductive and socialist defense spending and strange cultural issues.

If the right really stood for what they say, they would be in favor of incorporation for almost everyone. Face it, most of us do our own retirement funds and insurance nowadays, we are all essentially working for ourselves. It should be official. Why exactly, can Joe Hustler write off his Beamer for driving to work while I can't write off my Toyota? I've never heard a convincing answer to that one.

Comment Re:Corporations are Assholes. (Score 1) 809

If your very survival depends on receiving a living wage from a corporation that can simply choose to go away if it is asked to pay for the infrastructure it also uses, then you are not living a "dream" generously provided by altruistic corporations, but in slavery to organizations who can let you starve if they wanted to.

For many years I have not worked directly for a large company, although my industry is dominated by them. I've been working either as a contractor or for small 3rd-tier companies for 15 years. This all started after my engineering R&D job was exported to Ireland in the '80s.

No hard feelings though, things have worked out. The other day I was talking to an old friend of mine who is a vp at mega-corp where I contract now and he good-naturedly called me a bandit. Zing good one, but from my pov I'm just being enterprising. In fact, why does mega-corp get special treatment from various levels of government while tiny outfits like me get treated like pirates (I think that was another word he used) and evil "foreign workers"?

Point is, more and more people are are taking more and more responsibility into their own hands, at what point do those people get credit for being enterprises in their own right, and get compensated for the risk they take on? After all, isn't that what free enterprise is all about? Or is that only for entities that take in more then 8 figures?

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