PRESENTATION OUTLINE
They're naturally created by the sun, but can be man-made through using special electric arcs. Johann Ritter discovered them in 1801. This was the first time that non visible light had been detected
Most people recognize the use of ultraviolet rays through tanning beds/booths or blacklights
The harmful effects of UV rays include the risk of contracting skin cancers like melanoma. They can be harmful to the eyes as well, which is why goggles are mandatory while in tanning booths
UV Rays are also commonly used by forensic scientists on crime scenes to see fingerprints through black lights
The size of the wavelength is similar to the size of one strain of protein or a virus, invisible to the human eye.
The wavelength of UV rays ranges from 200nm to 280nm and the frequency is higher than waves of visible light
An interesting fact is that ultra violet rays are used on apple juice and cider to reduce the levels of microbial pathogens in them, which makes them healthier to drink
How could UV Rays be better used besides tanning??
Ultra violet Rays can be used to treat psoriasis with phototherapy, which can be done at home if prescribed by a doctor
