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Product Information Discover the Beauty of the Spectra of the Night How many different kinds of lights can you find around town at night? What is light pollution? Just punch out the 6 1/2" x 3" pocket-size grating/chart and check out the distant night lights. Learn how a diffraction grating works, verify its theoretical resolving power, and compare self-absorption in street lamp spectra to the Fraunhofer absorption spectra in the solar spectrum. Comes complete with lesson plan.  Tell a Friend about this item
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