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Humans can see infrared, sometimes

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From Phys.org:

Any science textbook will tell you we can’t see infrared light. Like X-rays and radio waves, infrared light waves are outside the visual spectrum. But an international team of researchers co-led by scientists at Washington University School of Medicine in St. Louis has found that under certain conditions, the retina can sense infrared light after all.

Using cells from the retinas of mice and people, and powerful lasers that emit pulses of infrared light, the researchers found that when laser light pulses rapidly, light-sensing cells in the retina sometimes get a double hit of infrared energy. When that happens, the eye is able to detect light that falls outside the visible spectrum. More.

Why might this be useful?

See also: The Science Fictions series at your fingertips (human evolution)

Hat tip: Timothy Kershner

Comments
The good thing for creationism here is that it shows , as a option, that all eyes are off the same racxk. they didn't evolve as creatures needed them. Its as if all eyes already have within them the options for adapting as needed. a welcome thing to explain biological diversity without slow evolution. other triggers can kick in that work upon a common design. A possibility. All research on eyesight should have as goal healing blindness by the way.Robert Byers
December 3, 2014
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