Talk:1145: Sky Color

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Revision as of 16:41, 10 December 2012 by Prooffreader (talk | contribs) (Answered contributor's question about why the sky is never green.)
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Of course with vertical mirror vertical axis is selected: perceived switching of left and right (really close with far to mirror surface). When standing on horizontal mirror we will perceive switching bottom from top. --JakubNarebski (talk) 09:09, 10 December 2012 (UTC)

You're certainly correct, but I think that the original question is not really asking about text (or other things) which are perpendicular to the mirror, but rather text which is parallel to it (and thus the close vs. far doesn't come into it). For example, when reading signs in your rear view mirror or holding a book in front of your chest while looking in a mirror. I've added a little bit to the explanation to attempt to help clarify what's happening in that situation. I'm not sure if it really helps or not. KeithyIrwin (talk) 10:00, 10 December 2012 (UTC)

Easier way to describe it: Imagine you hold a piece of glas. Write on the glass and hold it in front of the mirror, so that you can see both the original text and the mirrored text. Both versions of the text will look identical. So the mirror doesn't change anything. 62.220.2.194 11:10, 10 December 2012 (UTC)

I always wonder: Since the sky goes from red to blue to red and the optical spectrum goes from red to green to blue. How come the sky is never green?

Because of human color perception. You only perceive green in polychromatic light when said light is stronger in the middle wavelengths than the low or high wavelengths; in other words, you would need a process in the sky that removed both the high and low wavelengths from white light. As the sun sets, only the lower wavelengths are removed, so you perceive yellows and reds -- this perception of color is "one-sided", i.e. it is not interfered with by even longer wavelengths. By the way, sometimes you do see green briefly in the sky, it's called a Green Flash. --Prooffreader (talk) 16:41, 10 December 2012 (UTC)

This sentence doesn't make sense: "(from "his" right to left instead of from "his" left to right)" Trek7553 (talk) 15:15, 10 December 2012 (UTC)