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Lasers Key to Handheld Gas and Liquid Sensors

Terrorists have just laced the water supply of a major metropolis with a chemical so lethal that only small amounts are needed to kill thousands of people. But the chemical never reaches its targets. Tiny liquid phase sensors at strategic points in the citys water mains detect the chemical as it passes and tell a computer to close down the affected pipes.
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Tandem Ions May Lead the Way to Better Atomic Clocks

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Physicists at the Commerce Departments National Institute of Standards and Technology (NIST) have used the natural oscillations of two different types of charged atoms, or ions, confined together in a single trap, to produce the "ticks" that may power a future atomic clock.

The Next Giant Leap

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When it comes to taking the next "giant leap" in space exploration, NASA is thinking small -- really small.

Diamonds are a scientist's best friend

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Do diamonds really last forever? That's the hope of University of Wisconsin-Madison researchers who are trying to solve the problems associated with building extremely small machines and having them withstand the test of time, wear and tear.

UCLA Chemists Create Nano Valve

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UCLA chemists have created the first nano valve that can be opened and closed at will to trap and release molecules. The discovery, federally funded by the National Science Foundation, will be published July 19 in the Proceedings of the National Academy of Sciences.

First nanofluidic transistor

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University of California, Berkeley, researchers have invented a variation on the standard electronic transistor, creating the first "nanofluidic" transistor that allows them to control the movement of ions through sub-microscopic, water-filled channels.

No sign of the Theory of Everything...yet

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The quest for a single theory that unites all of the universe's fundamental forces has thus far eluded physicists, but that has not stopped a team of them from clearing the way for nanotechnologists while they look for it.

New Study: Why Solar Cells Lose Potency

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Commercial products such as laptop computer monitors and solar-powered calculators are constructed from a light-sensitive material with a peculiar problem: When exposed to intense light, it forms defects, reducing the efficiency of the solar cells by 10 to 15 percent.

NIST Photon Detectors Have Record Efficiency

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Sensors that detect and count single photons, the smallest quantities of light, with 88 percent efficiency have been demonstrated by physicists at the National Institute of Standard and Technology (NIST).

Z fires objects faster than Earth moves through space

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Technique helps compute Jupiter/Saturn mass, improve peacetime fusion capsule design, stabilize stockpile.

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