Tag Archives: quantum effects

NEWS: Short List

News:     February 21, 2011
Tunable antilaser good for a switch – Photonics | In science (as in life) it’s sometimes useful to go against the flow, to experiment with the reverse. Take lasers, for example. Excite some atoms into making a beam of photons and you’ve got a laser. Now go the other way: Start with a laser beam; [...]
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The absolutely coolest thermometer

News: Scientific Instruments    December 9, 2009
There’s nothing colder than absolute zero. In various scales that’s (in degrees): 0 Kelvin, -273.15 Celsius, -459.57 Fahrenheit. It’s so cold that the rest of the universe would have to reach that temperature to attain it, which is called absolute entropy, or the death of everything. So it’s not even theoretically possible to reach absolute [...]
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