radiology
radiology!
Do you, perhaps, mean "radioactive"? Yes, radioactive materials can be hazardous. If you literally mean "radiant", i.e. glowing, that's not technically in itself a hazard.
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nuclear energy to thermal and radiant energy
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- dumping the atomic wastes in oceans and sea.- leakage of radioactive materials from nuclear reactors.
radiology
radiant, conductive, and convection.
Radiant energy from the sun, kinetic energy and heat from the decay of radioactive material in the Earth's interior.
spectrophotometry is a branch of spectroscopy dealing with measurement of radiant energy transmitted or reflected by a body as function of wave lenght %
In radiometric dating, the amount of a certain radioactive isotope in an object is compared with a reference amount. This ratio can then be used to calculate how long this isotope has been decaying in the object since its formation. For example, if you find that the amount of radioactive isotope left is one half of the reference amount, then the amount of time since the formation of the object would be equal to that radioactive isotope's half-life.