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hyperphysics

Cosmic Background Radiation

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 ...

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Cherenkov Radiation

A basic explanation of Cherenkov Radiation from Encyclopedia Britannica.

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Laboratory for electromagnetic fields and microwave electronics

A very specialized high level site from the German laboratory for the study of electromagnetic fields and microwave electronics

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How Nuclear Radiation Works

A brief description of how Nuclear Radiation works from HowStuffWorks.com. Covering atomic structure, particles, radioactive decay, applications, naturally occurring isotopes.

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hyperphysics

Planck's Hypothesis

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 ...

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How Nuclear Radiation Works

Introduction to nuclear radiation, from howstuffworks.com.

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Radiation dose chart

A simple chart illustrating the ionising radiation dose a person can receive from various different sources.

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hyperphysics

Planck Radiation Formula

The Planck radiation formula is an example of the distribution of energy according to Bose-Einstein statistics.

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Hyperphysics - Absorbed Dose of Radiation

Definition and units of absorbed dose and the biological effectiveness of radiation.

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COBE Satellite

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 ...

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