Robert M. Dickson, an assistant professor of chemistry and biochemistry at Georgia Tech, says that silver could increase the amount of storage in optical devices. "One could potentially store more than 1 bit/data point by using color to store the information," says Dickson. For example, red and green mix to make yellow in computer displays for producing different shades of yellow. Dickson showed that clusters of silver atoms produced fluorescent emissions. Using the correct distribution of particle sizes, the multi-color emissions allow storage of more than one bit in each data point. "The different shades could be used to store more information per point. The storage density would then be related to the number of distinguishable colors," he says. He successfully demonstrated binary optical storage with the new system by writing and reading images recorded on thin films made of silver oxide. For more information, contact Dickson at (404) 894-4007.
Altair has released an update of its HyperWorks computer-aided engineering simulation suite that includes new features focusing on four key areas of product design: performance optimization, lightweight design, lead-time reduction, and new technologies.
At IMTS last week, Stratasys introduced two new multi-materials PolyJet 3D printers, plus a new UV-resistant material for its FDM production 3D printers. They can be used in making jigs and fixtures, as well as prototypes and small runs of production parts.
In a line of ultra-futuristic projects, DARPA is developing a brain microchip that will help heal the bodies and minds of soldiers. A final product is far off, but preliminary chips are already being tested.
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