Radiation Heat Transfer
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Radiation Heat Transfer
In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. This includes: * ''electromagnetic radiation'' consisting of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and Gamma ray, gamma radiation (γ) * ''particle radiation'' consisting of particles of non-zero rest energy, such as alpha radiation (α), beta radiation (β), proton radiation and neutron radiation * ''acoustics, acoustic radiation'', such as ultrasound, sound, and seismic waves, all dependent on a physical transmission medium * ''gravitational radiation'', in the form of gravitational waves, ripples in spacetime Radiation is often categorized as either ''ionizing radiation, ionizing'' or ''non-ionizing radiation, non-ionizing'' depending on the energy of the radiated particles. Ionizing radiation carries more than 10 electron volt, electron volts (eV), which is enough to ionize atoms and molecul ...
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Alfa Beta Gamma Radiation Penetration
Alfa may refer to: Businesses and organisations Broadcasting * Alfa Radio, a Macedonian radio station * XHFAJ-FM, a Mexico City radio station better known as Alfa 91.3 * Alfa TV (Cypriot TV channel), a premium television service available in Cyprus * Alfa TV (North Macedonia) Industrial * ALFA (Mexico), a Mexican industrial conglomerate * Alfa Aesar, a chemical supply company Science and technology * Alfa (Lebanon), a Lebanese telecom company * Alfa Financial Software, a British software company * Alfa Romeo, an Italian luxury automobile manufacturer founded as A.L.F.A. Other businesses * Alfa (cigarette), an Italian brand * Alfa Brewery, a Dutch brewery * Alfa Group Consortium, a Russian privately owned investment group ** Alfa-Bank, the Alfa Group corporate treasury * Alfamart, an Indonesian retail company * Alfa Records, a Japanese record label * Alfa Co., a subsidiary of the Al Faisaliah Group People * Alfa (singer), an Italian singer and rapper * Isaac A ...
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