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#261
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The last Kodak movie-film factory is at death's door
In article , Eric Stevens wrote:
nospam: not rubbish. stare into a tv remote and tell me what you see/feel/detect/sense when you press buttons. do the same with an ultraviolet led and a uv pass filter (to block the visible spectrum) and tell me what you see/feel/detect/sense. answer: nothing. nothing at all. completely invisible and undetectable by humans. no tan. no burn. no heat. Eric Stevens: Who said I have to detect it with an eyeball? Sandman: Please enlighten us with what part of your body you would detect the infrared light from the tv remote. I doubt if I could detect the infrared light from the TV remote. Case proven, then. Your body can't detect infrared light. Glad we got that sorted out. -- Sandman[.net] |
#262
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The last Kodak movie-film factory is at death's door
In article , Eric Stevens
wrote: stare into a tv remote and tell me what you see/feel/detect/sense when you press buttons. do the same with an ultraviolet led and a uv pass filter (to block the visible spectrum) and tell me what you see/feel/detect/sense. answer: nothing. nothing at all. completely invisible and undetectable by humans. no tan. no burn. no heat. Who said I have to detect it with an eyeball? Please enlighten us with what part of your body you would detect the infrared light from the tv remote. I doubt if I could detect the infrared light from the TV remote. exactly the point. I used the example of http://media.mightyape.net.nz/images/get/100295364 I can detect that in the dark even if I'm blindfolded. what you're detecting isn't the infrared light. |
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