keiths
Posts: 2195
Joined: Jan. 2006
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Sgt. DimBulb has apparently forgotten his "blackbody photon temperature" humiliation and is now presuming to lecture his intellectual superiors on spectral absorption:
| Quote ( DoofTard @ May 29 2006) | | The color of an object is the light that it doesn’t absorb. Green plants absorb all visible light frequencies EXCEPT green. Black objects absorb it all. White objects reflect it all. This is very basic physics that you should have learned in the sixth grade. -ds |
Later, after a commenter named Zachriel has helpfully supplied an absorption spectrum for chlorophyll, Dave writes:
| Quote | | [sigh] This isn’t introductory physics. Telling me “plants are green” does not support the statement that most of the light is not absorbed. Only a small portion (green light) is actually reflected. |
Dave apparently doesn't understand that because of the way the retina is built, many different spectra can result in the same perceived color. In this case, reflectance is high from blue-green all the way to orange, but Dave insists that only green light is being reflected.
He closes his comment in typical condescending Tard fashion: | Quote | | If there are still parts of this you don’t understand go somewhere else for the answers and come back when you know more. -ds |
Dave's been subscribing to Scientific American for 30 years, as he will proudly tell you. The question is, does he ever actually read it?
As a bonus, he proceeds in his next comment to contradict himself in the space of two sentences (besides spelling compressible and compressibility wrong):
| Quote | | Compressability and information content are synonymous. An uncompressable stream is carrying as much information as physically possible. |
Link to thread
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And the set of natural numbers is also the set that starts at 0 and goes to the largest number. -- Joe G
Please stop putting words into my mouth that don't belong there and thoughts into my mind that don't belong there. -- KF
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