Ultraviolet Light

By: Hannah, Virginia, Chanses, Sarah

Ultra Violet Wave

Ultraviolet (UV) light has shorter wavelengths than visible light and longer wavelengths than x-rays . Though these waves are invisible to the human eye, some insects, like bumblebees, can see them.

The picture above show wavelenghts and the frequency of an Ultra Violet Light!

http://science.hq.nasa.gov/kids/imagers/ems/uv.html
The Electromagnetic Spectrum
March 27,2007
How UV Light Works
On ultraviolet (UV) rays

Benefits of UV light


Ultraviolet light benefits humans in many different ways. Not only does it allow scientists to study stars and planets in the galaxy, it also helps with medical applications and consumer products. For example, UV light can eliminate jaundice, a harmful pigment that can be deadly to infants. It can also be used for Ultraviolet blood irradiation (UBI), which exposes blood cells to light to treat diseases. Some consumer products include tanning beds,

Reasons why ultraviolet rays are harmful to you.

Ultraviolet (UV) Rays can be very harmful to you and your body. Exposure to UV Rays can be very serious, even deadly. It can cause premature aging of the skin, suppression of the immune system, damage to the eyes, and skin cancer. It can also causes sunburn and eye damage. This is why Sun tanning is not recommended, because too much exposure can lead to these symptoms.

Johann Wilhelm Ritter

Johann Wilhelm Ritter was born in 1776, in Poland. He is most known for his invention of the Ultraviolet light in 1801.

Credits :)

http://micro.magnet.fsu.edu/optics/timeline/people/ritter.html
Molecular Expressions: Science, Optics and You Pioneers in Optics

Aug 01, 2003