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Radiation - Wikipedia In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium [1][2] This includes: electromagnetic radiation consisting of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ)
Radiation | Definition, Types, Effects, Facts | Britannica radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources
What is Radiation? | IAEA Radiation is energy that moves from one place to another in a form that can be described as waves or particles We are exposed to radiation in our everyday life Some of the most familiar sources of radiation include the sun, microwave ovens in our kitchens and the radios we listen to in our cars
Radiation Basics | US EPA Radiation is energy It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines Radiation travels from its source in the form of energy waves or energized particles There are different forms of radiation and they have different properties and effects
What is Radiation and What Types of Radiation Are There? Radiation is energy that comes from a source and travels through space and may be able to penetrate various materials Light, radio, and microwaves are types of radiation that are called nonionizing The kind of radiation discussed in this document is called ionizing radiation because it can produce charged particles (ions) in matter
How Radiation Works - HowStuffWorks Radiation is the emission and transmission of energy in the form of electromagnetic waves or particles Radiation can be ionizing or nonionizing radiation, and only ionizing radiation has enough energy to potentially cause damage to cells and DNA
About Health Effects of Radiation | Radiation and Your Health . . . Radiation can damage the DNA in cells, and high doses can lead to cancer later in life We've been studying the effects of radiation on living tissue for more than 100 years By measuring radiation and understanding its health effects, we can work safely around it