Next time you get your vision checked, the eye doctor may be taking a look at your brain! The retina in the back of your eyes holds blood vessels that are a good indicator of overall blood vessel health inside your brain. In a recent study of women over 65, participants who had retinal vessel trouble also showed more brain vessel damage. They also scored about 15% lower in tests...
How would you like a door lock that opens to your touch and your touch only? Instead of giving someone a key to your house while you’re gone, just program the lock to recognize their bones! Wait… what? Yes. Well, not quite yet, but a technology being prototyped at AT&T Labs sends vibrations from your smartphone through your bones. This
While human eyes can see many colors, the greeneye fish—found at ocean depths between 160 to 3,300 feet—can really only detect a green color, meaning any non-green predators should have an advantage over this tiny fish. Yet scientists at Duke University discovered that these greeneye fish have color-changing lenses in their eyes, which pick up ultraviolet light and transmit it as a green color back to the...
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