Exploring the World of Ultraviolet Light
Discover the fascinating world of ultraviolet light through a visually rich presentation that covers its history, properties, practical uses, impact on the human body, and more. From its past discoveries to future applications, learn about the ozone layer, astronomical uses, and practical applications of this invisible light. Unveil the mysteries of UV light and its effects in a comprehensive slideshow brought to you by REJ.
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Presentation Transcript
ULTRAVIOLET LET THERE BE (INVISIBLE) LIGHT! A Presentation Brought To You By REJ Visit www.worldofteaching.com For 100 s of free powerpoints
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
UVs EffEcts on HUman Body Minor effects on skin Cancer Eye problems Vitamin D
