A new method for filtering light coming from a specific direction

Using only material geometry and interference patterns, MIT researchers have devised a novel way of passing light of any colour only if it comes from a specific angle. Light coming from other directions will be reflected, something which can be desirable in certain applications. Those who could benefit immediately from the findings are solar photovoltaics, detectors for telescopes and microscopes, and

Digital imaging of the future: artificial imaging and 3-D displays

Computer graphics and digital video have gone an incredibly long way since their early days, however technology is still at such a point where people can still distinguish quite easily between what’s digitally rendered and what’s footage of reality. Three new papers recently presented by Harvard scientists at SIGGRAPH 2013 (the acronym stands for for Special Interest Group on GRAPHics and Interactive Techniques),

Rewriting the anatomy books – new layer of human cornea discovered

Scientists at The University of Nottingham have come across what can be a monumental discovery, demonstrating for the first time a new layer of the human cornea. The layer, which was described in a paper in Ophthalmology, could help surgeons to dramatically improve outcomes for patients with severe cornea affections and those undergoing surgery. The new layer has been named

New metamaterial focuses radio waves with extreme precision similar to Star Wars’ Death Star

Researchers at MIT have created a new metamaterial that they used to fashion a concave lens capable of focusing radio waves with extreme precision. The result lens is extremely lightweight compared to its counterparts developed from conventional materials, and could see promising applications in satellite telecommunications and space exploration of distant stars. In many ways metamaterials are supernatural, that’s because

New artificial lenses mimic the natural qualities of the eye

Modern sight correction medical procedures often involve surgery where an artificial lens is implanted. The patient’s sight is significantly improved, however the quality of vision is far from that experienced with a healthy pair of eyes. That’s because current artificial lenses function more or less like those from a camera, a bit more advanced of course. The eye is a