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Science

Submission + - SETI Institute's Looking for a Few Good Algorithms (oreilly.com)

blackbearnh writes: For years, people have been using SETI@Home to help search for signs of extraterrestrial life in radio telescope data. But Jill Tarter, director of the Center for SETI Research at the SETI Institute, wants to take things to the next level. Whereas SETI@Home basically used people's computers as part of a giant distributed network to run a fixed set of filters written by SETI researchers, Tarter thinks that someone out there may have even better search algorithms that could be applied. She's teamed with a startup called Cloudant to make large volumes of raw data from the new Allen telescope available, and free Amazon EC2 processing time to crunch over it. According to Tarter: "SETI@Home came on the scene a decade ago, and it was brilliant and revolutionary. It put distributed computing on the map with such a sexy application. But in the end, it's been service computing. You could execute the SETI searches that were made available to you, but you couldn't make them any better or change them. We'd like to take the next step and invite all of the smart people in the world who don't work for Berkeley or for the SETI Institute to use the new Allen Telescope. To look for signals that nobody's been able to look for before because we haven't had our own telescope; because we haven't had the computing power."
Power

Submission + - Debunked:Electric Cars Won't Strain the Power Grid (greencarreports.com)

thecarchik writes: Last week's heat wave prompted another eruption of that perennial question: Won't electric cars that recharge from grid power overload the nation's electricity system? A comprehensive and wide-ranging two-volume study from 2007, Environmental Assessment of Plug-In Hybrid Vehicles, looked at the impact of plug-in vehicles on the U.S. electrical grid. It also analyzed the "wells-to-wheels" carbon emissions of plug-ins versus gasoline cars. The load of one plug-in recharging (about 2 kilowatts) is roughly the same as that of four or five plasma television sets. Plasma TVs hardly brought worries about grid crashes.
Apple

Submission + - Consumer Reports can't recommend IPhone 4 (consumerreports.org) 1

aapold writes: In a blog post consumer reports revealed their results of their detailed antenna / reception testing process, involving a shielded room and a base station transmitter, and said their analysis confirmed the faulty antennae as a hardware issue, and is why they cannot recommend the IPhone 4 (but they continue to recommend the IPhone 3GS). In the comments section large numbers of outraged fans vow to cancel subscriptions to consumer reports, even suggest lawsuits...

Comment Re:"Offers one way of doing things" (Score 1) 208

They seem to agree on this, and think Flash is the way to go (see http://www.infoworld.com/print/125721). Either that is BS or this article is BS, they can't claim both. Everything they say could be said for Flash and vice-versa.

Sure they can have it both ways, just as long as it increases page hits on the infoworld website!

Comment Re:simple answer (Score 2, Insightful) 333

I think this is the first time I've heard someone as senior as [Redhat CEO] Whitehurst admit something rather profound: that open source solutions save money for customers by doing away with the fat margins for existing computer companies – and thus shrink the overall market.

Giving your work product away and hoping that someone will pay you for it ensures that you will make less money than people who demand fair pay for their work.

Comment Re:If I ever had to take one.. (Score 1) 452

Perceived - i.e., how you felt about it, not what you knew about it. If your feelings contain any anxiety, it will show up as a possible lie - so heightened physiological arousal of any kind registers as a lie.

It is not a lie detector, it is a stress detector, but that sucks at distinguishing lies because many people feel stress when asked certain questions even when they answer them perfectly truthfully. Many people feel little or no stress when they tell giant whopper lies. So polygraphs are completely unreliable as lie detectors.

Comment Re:A few notes... (Score 1) 609

All you'd need is strong enough brakes - if the power to the control shaft failed, the brakes would cause it to spin anyway because the output shaft would be effectively stopped by the brakes.

Of course once you release the brake the output shaft would jump immediately to highest speed...

At that point, I'd just shut the engine ;^)

Comment Re:Brilliant. Go Steve! (Score 2, Insightful) 609

Slippage limits torque. the whole advantage of this system is that it allows infinitely variable output - from full speed reverse through neutral, to full speed forward, all with full torque limited only by the size of the toothed gears used. All power transmission in this device happens through toothed gears. There are no belts, friction plates, clutches, etc - all toothed gears and only toothed gears, with zero slippage, full torque, and infinitely variable output .

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