chips

How Much Power Does The Human Brain Require To Operate?

Simulating the brain with traditional chips would require impractical megawatts of power. One scientist has an alternative

According to Kwabena Boahen, a computer scientist at Stanford University, a robot with a processor as smart as the human brain would require at least 10 megawatts to operate. That's the amount of energy produced by a small hydroelectric plant. But a small group of computer scientists may have hit on a new neural supercomputer that could someday emulate the human brain's low energy requirements of just 20 watts--barely enough to run a dim light bulb.

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Music-Powered Lab-on-a-Chip Promises Easier Health Screening

Engineers harness sound to simplify microfluidic devices (watch the music video!)

Thanks to a new approach to one of microfluidics' biggest challenges -- how do you propel fluid in a number of directions simultaneously without the clutter of myriad electromechanical valves and pumps? -- we could be closer to seeing our smartphones double as home flu kits. Credit goes to a team of chemical engineers at the University of Michigan for coming up with the innovative system, which uses music to control the fluid.

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New Integrated Circuits Consume No Standby Power


NEC and Rohm are going back and forth on new engineering breakthroughs that will allow integrated circuits inside chips to consume no power when they're briefly inactive between cycles. And unlike most chip-level developments on the edge, we may see the technology in consumer products by the end of the year.

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Coming Soon

Thin and Rich

A new set of chips gives super-slim cellphones the power of laptops

Think of Toshiba's TG01 cellphone as the world's smallest PC. It powers 3-D games, plays high-definition movies, and smoothly runs many programs at once, a combo few other phones offer. Yet it's less than four tenths of an inch thick — 20 percent thinner than an iPhone — thanks to Qualcomm's Snapdragon system, which packs several previously separate chips into one case the size of a dime.

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An Uncrackable Lock

A quantum cryptographic chip using light particles to encrypt data during electronic transfer could throw off hackers for good

Imagine an encrypted data chip so secure that even the greatest hackers in history would find impossible to crack. That chip is very much a reality thanks to the combined efforts of Siemens, Austrian Research Centers (ARC) and Graz University of Technology who have teamed up to create the first quantum cryptology chip for commercial use to ensure securer electronic communication.

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December 2009: Best of What's New

In our December issue, Popular Science names the 100 best innovations of the year: bombproof wallpaper, self-parking cars, the fastest helicopter, and 97 more. Plus inventor profiles and videos.

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