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Originally Posted by specious_reasons
Quote:
Originally Posted by peacegirl
Who said light didn't have a wavelength? Sunlight has a wavelength that includes all of the colors of the visible spectrum. This light is everywhere.
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Not correct, peacegirl. Color=wavelength. The Sun emits light at all wavelengths. The Sun emits light of all colors. |
That's what I just said.
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Originally Posted by specious_reasons
If you put a red object in sunlight, the object absorbs most wavelengths of light and reflects red light.
If you put a blue object in sunlight, the object absorbs most wavelengths of light and reflects blue light.
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I'm not disputing this.
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Originally Posted by LadyShea
And it is also not true that light is everywhere. Light travels in a straight line until it hits an object, then it is either reflected or absorbed. This is why about 1/2 the Earth is in shadow. Night happens because the light emitted from the Sun is blocked or reflected by the Earth.
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That's correct. I will qualify that by saying in daylight, light is everywhere. That's what LadyShea was alluding to.
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Originally Posted by specious_reasons
Of course, it's hard to be completely without light. There are other stars emitting light and the moon reflects sunlight back to Earth.
Again, this all is empirically proven, and well established fact. Regardless of how you think we see, these facts are true and must remain true. Any explanation of vision that defies these facts must necessarily be false.
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Lessans is still in the game then because none of these facts are being challenged. What
is being challenged is afferent vision which, if proved to be false, would change the belief that we are seeing the past instead of the present.