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Old 23-06-06, 03:19 PM
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Luddite Luddite is offline
Going down and loving it
 

Join Date: Jul 2004
Location: Hull
Posts: 830
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Quote:
Originally Posted by Freeflow
Now pay attention class.

Anyone who already knows the answer can keep quiet, and no googling, I just want to hear of theories as to why it happens.

Q: If reds fade first as you descend, followed by orange, yellow etc, why do flourescent colours still show as orange at 30m+ without artificial light.

A Green for the most inventive reply [no matter how surreal], and a green for the closest to the real answer.
I new my years studying chemistry would pay off.

Flourescent is produced when a outer shell electron absorbs a photon and is exsited into a higher shell breifly. It then falls back to its original shell releasing a photon of energy. The photon is of the same wavelength as that absorbed and so gives a bright colour.

Want to know about phosphourescent too?
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