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Optoelectronics, Optics, Lights and Lasers > Non-Coherent Light Sources > Combustion > 

Blue paper looks green, physics?

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Author Topic: Blue paper looks green, physics?  (Read 6182 times)
Monika
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« on: May 28, 2011, 01:10:06 AM »
why does blue paper look green in candlelight and blue in daylight?
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BallBreaker
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« Reply #1 on: May 28, 2011, 01:33:31 AM »
it will look blue if you had a lot of candles
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zeimusu
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« Reply #2 on: May 28, 2011, 02:15:06 AM »
Candles have an excess of yellow. Blue+yellow = green
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David_N
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« Reply #3 on: May 28, 2011, 02:27:11 AM »
Sounds as if maybe you are viewing it in impure (multiple frequency) orange or yellow light.

EDIT:
Granted:
Blue + Yellow = Green

But the paper is not GENERATING any blue, it is only REFLECTING it.
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