Understanding Lasers

Understanding Lasers

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The laser beam could set the nest on fire and unclog the vent. b. Inexpensive diode ... The scanner only reads the bar codes when they are flat on the glass surface, so the fluorescent light does not illuminate off the bar code. e. The scanneranbsp;...

Title:Understanding Lasers
Author:Jeff Hecht
Publisher:John Wiley & Sons - 2011-09-20


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