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Colder than the coldest cold

Absolute zero is supposed to be the coldest cold — 0 Kelvin, the point where atoms stop moving.

But researchers at the University of Munich say it's possible to get colder than that, an idea they've demonstrated experimentally. But what does it mean to be colder than cold? Here's the scientists' totally unhelpful explanation:

another way to look at these negative temperatures is to consider them hotter than infinity, researchers added.

Cool. Thanks, guys. Luckily, journalist Charles Q. Choi makes this strange idea make a whole lot more sense. Read his explanation at LiveScience.

Image: Frozen Peas Corn Carrots IMG_1000, a Creative Commons Attribution (2.0) image from stevendepolo's photostream

The climate change generation gap

October 2012 was the 332nd month in a row with a global average temperature that is higher than the 20th-century average. Put it another way: If you are younger than 28, then you have never experienced a colder-than-average month. In your entire life. (Via Chris Tackett) Maggie