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A Cut above: Ultrapowerful Laser Offers Greater Precision Sans Heat Damage [Slide Show] (Scientific American)
Most lasers rely on continuous waves of energy to generate heat that allows doctors to make cuts during surgery, computers to burn information onto CDs and DVDs, and scanners to read bar codes. But a newer type of laser promises to do all of these things more efficiently using quick, short blasts of energy. This pulsed-laser technology has been around since the 1980s but high cost has kept it ...
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