UV is also used to detect counterfeit money, and to harden some types of dental filling.
At places that use UV lights, or "blacklights," as called by some, the lights illuminate clothes, making the clothes seem to glow. This is caused by certain chemicals in washing materials which fluoresce when hit by UV. The clothes absorb the light and re-radiate it at a longer wavelength.
For people with a Vitamin D deficiency, doctors usually prescribe small doses of UV light.
This is because the body produces Vitamin D when exposed to suitable amounts of UV.
Frequency: 7.5 x 10 to the 14th power - 3 x 10 to the 16th power.
This video explains how UV light, when mixed among other materials, may "fluoresce," simply because of the photons it emits. Everything else did the same thing, not fully explaining UV, just the fluorescent part.
Our Sun in UV
An image of our Solar System's sun taken in UV.
A UV Light
This can be used to "see" germs, also to kill them.
Ultraviolet Light in the Electromagnetic Spectrum
Where UV lies in the broad range of EM Waves.
UV Light in Action
The before mentioned light being used as said, revealing the unseen. Along with this feature, UV light can function in a similar fashion to see invisible ink.
This tanning bed, as seen from above, uses UV light to tan people. However, too much of this can cause skin cancer!
This is what happens when exposed to too much UV, aside from cancer.
UV Light in Action
Gigi the Germ-Zapping Robot
Gigi in Action
At the location of the link, you will find the main article on Gigi. It basically explains the
Anyway, Gigi takes a powerful UV light and amplifies that power even more. This is explained by the co-founder Mark Stibich. Specific material information is not given, as well as facts about when and where Gigi was made.
It does, however, explain the impact Gigi will have on this world. Seeing as she can wipe out all known diseases so far, soon hospitals will be as clean as ever, without a single germ to be seen (as technology advances, of course). Now, if a human were to stand in the room (And I'm sure you all know, this is meant only to clear up any misconceptions), they would die almost instantly.
Mattson, Barbara. "Regions of the Electromagnetic Spectrum." Wavelength, Frequency, and Energy. Goddard Space Flight Center, 15 Sept. 2004. Web. 17 Nov. 2014.
Science Mission Directorate. "Ultraviolet Waves"Mission:Science. 2010. National Aeronautics and Space Administration. 17 Nov. 2014
"Simplifying Negative Exponents Lesson." AlgebraHelp. N.p., 2001. Web. 17 Nov. 2014.
Martinez, Michael. "Germ-zapping Robot Gigi." CNN. Cable News Network, 01 Jan. 1970. Web. 16 Nov. 2014.