OXFORD, England -- Joshua Silver, a lifelong tinkerer, was fiddling around one day with a cheap, water-filled lens he'd built as an optics experiment when he noticed something interesting. By adding ...

An illustration showing the final stage of a possible future giant telescope being created in space using fluids. Studio Ella Maru SHARE NASA is always searching for new ways to extend its ability to ...

Future VR headsets could use a new type of lens inspired by holographic devices. The bilayer bifocal lens relies on external voltage to change the intensities in the foci. When you purchase through ...