UV

UV - Transcript

LET THERE BE INVISIBLE LIGHT

ULTRAVIOLET

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Ultraviolet Radiation
between 400 100 nm on the spectrum UV part of spectrum divided into regions Produced by high temperature continuous prism

Ultraviolet The Past
Johann Wilhelm Ritter 1801
Silver Chloride



Melloni and Becquerel 1842 1920 s Balloon s 1946 Rocket Man 1962 Orbiting Solar Observatory NASA
First Extreme Data Collection

1978 International Ultraviolet Explorer 1992 Extreme Ultraviolet Explorer

The Ozone Layer
Stratosphere
10 30 Miles

UV A UV B UV C
99

Telescopes in space The future

Practical Uses
Black Light
Authenticate



Fluorescent Lamps Spectroscopy Minerals GFP Photolithography Electrical Insulation Sterilization Water

UV in Astronomy
Used since the 1960s Copernicus Hopkins UV telescope

Diagram of HUT

UV s Effects on Human Body
Minor effects on skin Cancer Eye problems Vitamin D

THE END