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 ...

Those between 200 and 400 nanometers constitute the invisible spectrum, which includes the ultraviolet radiation from the sun ...

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 ...

As the U.S. continues to wait for newer sunscreen ingredients, patients should use tinted sunscreens to protect against visible light that causes photodamage, melasma and hyperpigmentation, according ...

To understand where black falls on the color spectrum, first consider what light actually is. Light is radiation visible to the human eye Light is energy called electromagnetic radiation.

This is the most likely reason that earlier searches for extraterrestrial intelligence were conducted in the radio portion of the light spectrum instead of the visible portion of the light spectrum.

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 ...