Ultraviolet
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PRESENTATION OUTLINE
ULTRAVIOLET
Photo by Hubble Heritage
•The third highest energy measurement
• The third shortest wavelength. Wavelength is shorter than visible light and Longer than x-ray.
• The third highest frequency. Higher frequency than visible light and lower frequency than x-ray.
Photo by Allen Gathman
Hospitals use UV lamps to clean surgical equipment and the air in operating theatres.
Photo by Olivander
The right amount of Ultraviolet rays cause the body to produce vitamin D. Ultraviolet light can also be used by doctors to treat vitamin D deficiency and some skin problems
Photo by Evil Erin
Welding arcs and frames; give off visible, infrared and ultraviolet energy all in one.
Photo by El guaje29
Incandescent and Fluorescent bulbs both give off small amounts of UV rays.
Photo by 24thcentury
Astronomical Emitters
-Younger, Massive Stars
- Bright Nebulae
-Active Galaxies
- White Dwarf Stars
- Supernova Remnants
Photo by NASA's Marshall Space Flight Center
Active galaxies are galaxies with extremely bright cores. The brightness is brighter than even some of the electromagnetic spectrum.
Photo by Hubble Heritage
Supernova remnants are clumps of material left over from a supernova explosion.
Photo by NASA's Marshall Space Flight Center
Not much can be seen using ultraviolet light. Most objects are too cool to release such high energy. Stars such as our sun, give off UV rays that travel through space.
Photo by NASA Goddard Photo and Video
Scientists sometimes use ultraviolet light to find the temperatures of the sun (red colors are normally cooler while greens and blues are scorching hot)
Photo by sdomission
Ultraviolet wavelengths are used to find astronomical objects that are farther away, more than when they are closer.
Photo by rmforall@gmail.com
UV waves help scientists find the density, chemical structure, and temperatures of star gas/dust.
Photo by NASA's Marshall Space Flight Center
The colors of seeds, flowers and fruits appear brighter and stronger in UV lights than that in the human light spectrum.
Photo by Gianluigi Bertin
VARIOUS INSECTS SUCH AS BEES ARE ABLE TO SEE ULTRAVIOLET LIGHT.
Photo by TexasEagle
All images were found on Haiku Deck
Websites used:
http://sciencelearn.org.nz/Contexts/You-Me-and-UV/Science-Ideas-and-Concept...
http://blog.flexfireleds.com/uses-ultraviolet-uv-led-light/
http://www.iem-inc.com/information/radiation-sources/non-ionizing-radiation...
http://www.livescience.com/50326-what-is-ultraviolet-light.html
http://www.buzzle.com/articles/interesting-facts-about-uv-rays-you-probably...
Photo by adamtr
