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RVFM Spectroscope

Spectroscope-RVFM-SEP-205A-P-The-really-intriguing-aspect-of-this-device-is-the-use-of-a-common-place-CD-or-DVD-replacing-either-an-expensive-prism-or-specially-made-diffraction-grating-The-performance-of-this-ultra-low-cost-spectroscope-is-comparable-with-instruments-costing-much-more-P-P-It-clearly-shows-Fraunhofer-lines-in-the-spectrum-arising-from-natural-light-and-distinctive-emission-bands-from-artificial-sources-such-as-sodium-lamps-Differences-between-fluorescent-lighting-tubes-

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