They're your eyes, and they receive signals that fall in the range of visible light ... There's lots to discover in the electromagnetic spectrum. Here's a tour that begins with radio waves ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

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 ...

Researchers at The University of Manchester’s National Graphene Institute have created optical devices with a unique range of tunability, covering the entire electromagnetic spectrum, including ...

Among the various techniques, supercontinuum (SC) generation stands out for its ability to produce light across a wide portion of the visible and infrared spectrum. However, traditional SC sources ...