Each of these glowing animals is an example of photoluminescence—the property of being able to reflect or absorb and re-emit ultraviolet (UV) light from the sun, moon, or an artificial UV light ...

Nightclub lights. Nightclub visitors will be familiar with white clothes, or perhaps their gin and tonic, glowing blue under UV light. This is a great example of fluorescence — when the energy ...

The UV Index provides a measure of the sun's ultraviolet radiation, a short wavelength of light invisible to humans, that can ...

ANSWER: You’re not going to like my answer, because all types of UV light exposure, whether they lead to a sunburn or suntan, cause damage to the skin and lead to an increased risk of skin cancer.

Doctors use ultraviolet (UV) light therapy to treat an array of common skin conditions, such as psoriasis and eczema. Some different types include UVB, UVA, PUVA, and heliotherapy. Learn more.

The UV light “excites” the electrons in the ink’s molecules and causes them to enter a higher energy state. Then, the electrons release the energy in the form of visible light, which makes ...

Ultraviolet (UV) light is another. Yet until recently, generating enough UV-C light, which is required for decontamination, has been expensive. Now, thanks in part to COVID, it is a lot cheaper.

But the influence of high-energy ultraviolet light, which would have bombarded the surface of early Earth because the planed lacked an ozone layer, has never been considered as a selection ...