Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on amateur telescopes.

The lens shapes light as it comes into the camera – but lenses can also shape light as it ... you’ll find a cone-shaped silver reflector and a lens to project that light into the classic flashlight ...

Believe it or not, the Kansas Statehouse is a real place. It might sound like a state of mind or a setting for a basic cable ...