Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t make any sense, but ...

How about being able to see things normally completely outside the visual spectrum, like hydrogen combustion or electrical discharges? [David Prutchi] has just shared his incredible work on ...

Researchers in the Harvard John A. Paulson School of Engineering and Applied Sciences have created a bilayer metasurface made ...

Children with autism spectrum disorder (ASD) often display social communication impairments and restricted and repetitive ...

A rainbow contains all the colours of the visible spectrum. It is often possible to see a secondary bow, which is slightly larger and fainter than the first – and the colours are in the opposite ...