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Blackbody radiation refers to an object or system which absorbs all radiation incident upon it and re-radiates energy which is characteristic of this radiating system.
Units of radiation, description of risk of radiation, comparing old and new units with good links to other relevant parts of the site.
This fact sheet describes ionizing radiation, how it behaves and how it can affect human health. Three types of ionizing radiation are alpha particles, beta particles, and gamma rays.
An interactive tutorial starting from charged particles, leading to electromagnetic waves and their applications.
A range of resources on the electromagnetic spectrum and the different types of electromagnectic wave, from radio waves to gamma rays.
This site gives an in depth analysis of what electromagnetic waves are. Including some helpful multimedia diagrams.
Description of electromagnetic waves, which move energy through empty space (a vacuum), stored as part of an electric and magnetic field.
From Eric Weisstein's World of Physics, this page is the index for all sections related to electromagnetic waves. A useful site for quick brief information
A simple to follow page showing a breakdown of the electromagnetic spectrum into its wavelengths.
Short information page on the electromagnetic spectrum, including a useful diagram.
Showing 11 - 20 of 127