I've read somewhere that if one walks around wearing goggles that filter al visible light but lets infra-red light (or perhaps it was UV...can't remember for sure) one would eventually become able to see infrared radiation as well, is it true? and if so, any requirements besides walking around with said goggles? if not, why is it impossible?
2007-06-18 15:45:01 · 3 answers · asked by TiagoTiago 2 in Science & Mathematics ➔ Medicine
btw, is this the right category for this question?
2007-06-18 15:45:41 · update #1
If a human starts out not being able to see infrared light, nothing short of replacing the cone cells in their eyes with new ones that have a different structure will allow them to see infrared light.
We're talking about a genetic mutation that causes the retina to produce new cone cells of a type it had never produced before. Exposure to infrared light will not cause such a mutation, since it would require DNA to be altered.
That being said, different humans have different limits on the spectrum their eyes can perceive.
2007-06-18 15:50:15 · answer #1 · answered by lithiumdeuteride 7 · 1⤊ 0⤋
No it's not possible. In order for it to be possible the cones and rods (the cells in your eyes that transfer light signals to the brain) would have to mutate to see infra-red light. If this happened you wouldn't be able to see normal light.
2007-06-18 22:48:51 · answer #2 · answered by freesince1776 5 · 1⤊ 0⤋
No. Retinal receptors are sensitive only to light wave (from red to violet).
But there are commertial lenses (they have a I.R. sensor and you 'see' in its screen all the warm emmiters very brilliant). Their initial use zas in war, but they haven´t restrictions nowadays.
2007-06-18 22:53:51 · answer #3 · answered by Sorry 4 · 1⤊ 0⤋