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|  |  |  |  | | | What is radiation?
Click to start the animation. Radiation is the term used for all phenomena characterised by the transport of energy, either by waves or sub-atomic particles. The highest energy waves can behave just like particles, and sub-atomic particles can behave just like waves. This is called the wave – particle duality.
For more information on different aspects of radiation click on the right-hand links to:
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|  | The electromagnetic spectrum Particle radiation The effects of magnetic fields Radiation and life Find out more ISSHow to become an astronaut
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