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A uniform background radiation in the microwave region of the spectrum is observed in all directions in the sky. It shows the wavelength dependence of a "black body" radiator at about 3 Kelvins ...
A brief description of how Nuclear Radiation works from HowStuffWorks.com. Covering atomic structure, particles, radioactive decay, applications, naturally occurring isotopes.
In order to explain the frequency distribution of radiation from a hot cavity (blackbody radiation) Planck proposed the ad hoc assumption that the radiant energy could exist only in discrete quanta ...
Introduction to nuclear radiation, from howstuffworks.com.
A simple chart illustrating the ionising radiation dose a person can receive from various different sources.
The Planck radiation formula is an example of the distribution of energy according to Bose-Einstein statistics.
Definition and units of absorbed dose and the biological effectiveness of radiation.
Charles Glover Barkla (1877 - 1944) received the Nobel Prize for Physics in 1917 for his comprehensive research into the nature of radiation, in particular secondary radiation.
NASA's Cosmic Background Explorer satellite was launched to explore the cosmic microwave background radiation. It has discovered fluctuations in that radiation which are important to big bang ...
A brief description of how Nuclear Medicine works. The pages address broad areas of medical use of radiation: PET, MRI scanners, SPECT, cardiovascular and bone scanning, treatment, radiation therapy.
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