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Gamma Radiation (Gamma Rays)

Who Discovered it and What it is:
While studying the radiation that emitts from radium, French chemist and physicist Paul Villard discovered gamma rays in 1900.
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Gamma rays are electromagnetic radiation of high frequency with a very low wavelength.

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Frequency and Wavelength:
The wavelengths are less than 10 picometers and the frequencies are above 109 Hz.
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Dangers:

burns
increase chance of cancer
radiation sickness/poisoning
damage to organ tissue
destroys cells
penetrates into skin

Human Benefits:
Medical:

kills cancerous cells
CT scans
radiation therapy
nuclear medicine diagnoses
steralize medical equipment

Consumer:

kills living organisms
removes decaying bacteria from foods
helps maintain freshness in fruits and vegetables (food irratation)
alter semiprecious stones
plastics
shrink foils for food packaging
tires
wires
automobile parts
cables
metal hardware