UWOL #33-Gold, Silver, Bronze by Steve Siegel - Page 2 at DVinfo.net

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Old April 7th, 2015, 12:52 PM   #16
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Re: UWOL #33-Gold, Silver, Bronze by Steve Siegel

Marj,

You raise an interesting point that I neglected to think about. Namely that all color information we perceive is a brain function. I used to work with a spectrograph, measuring light intensity in the 700 nm range (red). Of course, if I looked at the beam I saw red light. I always assumed that the machines sensor was seeing red light, and interpreting it as red light. Not so. It only interpreted it as electromagnetic energy centered near 700 nm. No color attribution at all.

How about this. Are colors absolute, or not? If you met an alien from another solar system and
showed her a crayon that was the same color as the noon sun (yellow), and asked her to pick a crayon out of the box that she thought was the same color as the sun, would it be the same crayon?
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