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Science

+ - Scientists create functional Maxwell's Demon-> 1

Submitted by maxwell demon
maxwell demon (590494) writes "For the first time, scientists have converted information into pure energy, experimentally verifying a thought experiment first proposed 150 years ago.

The idea was originally formulated by physicist James Clerk Maxwell, but it gained controversy because it appeared to violate the second law of thermodynamics. Put in experimental terms, this law states that when hot and cold water are mixed, they will eventually reach an equilibrium middling temperature.

Maxwell proposed that a hypothetical being (later dubbed Maxwell's demon) could separate the water into two compartments and reverse the process, isolating hot molecules from cold by letting only the hotter-than-average through a trap-door between the compartments.

(Link to original paper)"

Link to Original Source

+ - Green laser pointers may be dangerous-> 1

Submitted by maxwell demon
maxwell demon (590494) writes "Researchers at NIST have found out that cheap green laser pointers can emit dangerously intense infrared light. Since you cannot see infrared light, you'll normally not notice it, however it's dangerous for your eye. The article also describes how to test laser pointers with consumer equipment. Of course, while doing that, do not look into laser with remaining eye."
Link to Original Source
Announcements

+ - First optical quantum computer on a chip->

Submitted by maxwell demon
maxwell demon (590494) writes "Scientists from the University of Bristol the first optical quantum computer on a chip (more information can be found on their own page). While it cannot do more than previous setups did (namely factorize 15 using Shor's algorithm), the new part is that it only needs a microchip instead of a large laboratory setup."
Link to Original Source

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