Author Topic: Colder than Absolute Zero (Read 1191 times)

RandallS · « **on:** January 04, 2013, 11:12:02 am »

Due to a quirk of quantum physics, it seems the temperature of a gas can drop below absolute zero.

Read the article

woodhick · « **Reply #1 on:** January 04, 2013, 05:23:35 pm »

Quote from: RandallS;89033

Due to a quirk of quantum physics, it seems the temperature of a gas can drop below absolute zero.

Read the article

interesting, I remember hearing about this a few years ago as a blurb, but nothing more. Granted that I am a biologist and not a physicist, so it wouldn't be popular in the normal stuff i read.

Aisling · « **Reply #2 on:** January 04, 2013, 06:11:01 pm »

Quote from: RandallS;89033

Due to a quirk of quantum physics, it seems the temperature of a gas can drop below absolute zero.

Read the article

Never say never, right? Amazing.

Cabal · « **Reply #3 on:** January 04, 2013, 06:14:31 pm »

Quote from: RandallS;89033

Due to a quirk of quantum physics, it seems the temperature of a gas can drop below absolute zero.

Read the article

The universe continues to amaze us.

RandallS · « **Reply #4 on:** January 04, 2013, 09:12:54 pm »

Quote from: woodhick;89075

interesting, I remember hearing about this a few years ago as a blurb, but nothing more.

After doing a bit more reading on my part, it doesn't look like this is the first time a negative absolute temperature has been achieved, but rather the first time it has been done in a relatively "large" group of atoms.

Dragonoake · « **Reply #5 on:** January 07, 2013, 02:08:40 am »

Quote from: Cryfder;89080

The universe continues to amaze us.

"Not only is the universe stranger than we imagine, it is stranger than we can imagine."
-- Sir Arthur Eddington

Dragonoake · « **Reply #6 on:** January 07, 2013, 02:39:34 am »

Quote from: RandallS;89033

Due to a quirk of quantum physics, it seems the temperature of a gas can drop below absolute zero.

It appears to have more to do with entropy and kinetic energy that with actual temperature

http://www.sciencedaily.com/releases/2013/01/130104143516.htm