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Old 18-11-2008, 11:23 AM
nytecam's Avatar
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Colgate spectroscope
Check your bathroom - you may have a crude spectroscope lurking.

Colgate have upped the holographic wrap to their toothpaste tubes and I spied this spectrum of an energy saving lamp in mine this morning as a series of descrete coloured emission lines to give the illusion of white light.

Holographic wraps etc are commonly used in marketed products today. Keep those eyes peeled
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