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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, 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. This article delineates the properties and behaviour of radiation.
25 sty 2023 · Radiation is energy that moves in waves or particles. Learn about the different types of radiation, their benefits and risks, and how to protect yourself and the environment from their effects.
Learn about radiation as energy or particles from a source that travel through space or other mediums. Find out about natural background radiation, ionising radiation, and frequently-asked questions about radiation.
16 kwi 2024 · Radiation is the emission and transmission of energy in the form of waves or particles. Learn about the electromagnetic spectrum, ionizing and nonionizing radiation, and how radiation affects our health and environment.
7 lip 2023 · Radiation is the emission of energy as electromagnetic waves or moving subatomic particles. Natural radiation comes from many naturally occurring radioactive materials found in soil, water, air and in the body. Every day, people inhale and ingest forms of radiation from air, food and water.
Radiation is energy that travels in the form of waves or particles and is part of our everyday environment. Learn about the types, sources, effects and safety of radiation from WHO's fact sheets, questions and answers, databases and tools, initiatives and groups, resolutions and decisions, and technical work.
