Scientists restore sight to blind mice by regenerating optic nerve

lab mouse

Scientists restore vision to blind mice.

There are three blind men who have an inherited eye disorder that had destroyed the light-sensing cells of their retinas many years ago.  Now one of the blind men can walk around at night navigating by streetlight and headlights.  Another can read his own name.  And the third mean has been able to see his fiancée’s smile for the very first time.  All of this has been made possible by the retinal implants they have been fitted with.  The implants took over from the broken cells.  They sense incoming light by converting it into electrical impulses delivered to the brain.  They aren’t close to having 20/20 vision, but they have restored sight to people who have lived without it for years.

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The Perfect Gift For the Physicist Who Thinks In Ten Dimensions

theoretical physics object 4321
Calabi-Yau Manifold Crystal
Holiday shopping can be tough. Holiday shopping for that special someone can be tougher—especially if that someone happens to be a theoretical physicist. Luckily, for the brainiac who has everything there’s this beautiful Calabi-Yau Manifold crystal.
But what is it, you ask? Why, put simply, it’s a great representation of something we primitive humans will never be able to observe directly:

According to string theory, space-time is not four-dimensional as you might expect, but actually 10-dimensional. The extra six dimensions are believed to be compactified or rolled up into such a small space that they are unobservable at human scales of sight….

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Artificial Corneas

Artificial Corneas 

 Artificial Cornea

Researchers at Stanford University may have just gotten us one step closer to creating a cyborg. They’ve developed a new kind of artificial cornea, one that’s “showing promise” in animal studies and could eliminate the need for cornea transplants completely.

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