January 30, 2002   

   Crystal stores light pulse
Quantum computers will need to be able to transmit information using light. The question is how do you store that information? Researchers took a step in the right direction last year by storing light pulses in gas atoms. But it's probably not a good idea to build computers using vapor. Storing light pulses in a crystal is more like it.
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Rocket chips to propel small satellites
In this age of miniaturization, it seems that you can shrink just about anything and put it on a chip -- even rocket engines.

Computers sort gender in a binary world
Analyzing voices as well as faces gives computers a good chance to tell girls from boys, at least if they're facing the right way and are in a relatively quiet environment.

Quantum network withstands noise
Fragile quantum information is hard enough to preserve inside quantum computers. Sending it across networks is a tremendous challenge.

DNA computer readout glows
Computing using DNA has the potential to solve certain problems very quickly because millions of molecules can work on the same problem at the same time. One problem is figuring out how to read the answer. Getting the right pieces of DNA to glow could be a solution.

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