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Old 18-11-2008, 11:26 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 six 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

Last edited by nytecam; 18-11-2008 at 11:29 AM. Reason: spelling
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