Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Radiation> ?p ?o }
- Radiation abstract "In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes: electromagnetic radiation, such as radio waves, visible light, x-rays, and gamma radiation (γ) particle radiation, such as alpha radiation (α), beta radiation (β), and neutron radiation (particles of non-zero rest energy) acoustic radiation, such as ultrasound, sound, and seismic waves (dependent on a physical transmission medium) gravitational radiation, radiation that takes the form of gravitational waves, or ripples in the curvature of spacetime.Radiation is often categorized as either ionizing or non-ionizing depending on the energy of the radiated particles. Ionizing radiation carries more than 10 eV, which is enough to ionize atoms and molecules, and break chemical bonds. This is an important distinction due to the large difference in harmfulness to living organisms. A common source of ionizing radiation is radioactive materials that emit α, β, or γ radiation, consisting of helium nuclei, electrons or positrons, and photons, respectively. Other sources include X-rays from medical radiography examinations and muons, mesons, positrons, neutrons and other particles that constitute the secondary cosmic rays that are produced after primary cosmic rays interact with Earth's atmosphere.Gamma rays, X-rays and the higher energy range of ultraviolet light constitute the ionizing part of the electromagnetic spectrum. The lower-energy, longer-wavelength part of the spectrum including visible light, infrared light, microwaves, and radio waves is non-ionizing; its main effect when interacting with tissue is heating. This type of radiation only damages cells if the intensity is high enough to cause excessive heating. Ultraviolet radiation has some features of both ionizing and non-ionizing radiation. While the part of the ultraviolet spectrum that penetrates the Earth's atmosphere is non-ionizing, this radiation does far more damage to many molecules in biological systems than can be accounted for by heating effects, sunburn being a well-known example. These properties derive from ultraviolet's power to alter chemical bonds, even without having quite enough energy to ionize atoms. The word radiation arises from the phenomenon of waves radiating (i.e., traveling outward in all directions) from a source. This aspect leads to a system of measurements and physical units that are applicable to all types of radiation. Because such radiation expands as it passes through space, and as its energy is conserved (in vacuum), the intensity of all types of radiation from a point source follows an inverse-square law in relation to the distance from its source. This law does not apply close to an extended source of radiation or for focused beams.".
- Radiation thumbnail Alfa_beta_gamma_radiation_penetration.svg?width=300.
- Radiation wikiPageExternalLink radon-worldhealth.org.
- Radiation wikiPageExternalLink www.radiationanswers.org.
- Radiation wikiPageID "25856".
- Radiation wikiPageLength "39667".
- Radiation wikiPageOutDegree "193".
- Radiation wikiPageRevisionID "706197740".
- Radiation wikiPageWikiLink 1_myriametre.
- Radiation wikiPageWikiLink Absorbed_dose.
- Radiation wikiPageWikiLink Acoustics.
- Radiation wikiPageWikiLink Acute_radiation_syndrome.
- Radiation wikiPageWikiLink Alpha_decay.
- Radiation wikiPageWikiLink Alpha_particle.
- Radiation wikiPageWikiLink Antimatter.
- Radiation wikiPageWikiLink Astronomer.
- Radiation wikiPageWikiLink Atmosphere_of_Earth.
- Radiation wikiPageWikiLink Atomic_nucleus.
- Radiation wikiPageWikiLink Background_radiation.
- Radiation wikiPageWikiLink Banana_equivalent_dose.
- Radiation wikiPageWikiLink Beta_particle.
- Radiation wikiPageWikiLink Billiard_ball.
- Radiation wikiPageWikiLink Black-body_radiation.
- Radiation wikiPageWikiLink Black_body.
- Radiation wikiPageWikiLink Browning_(food_process).
- Radiation wikiPageWikiLink Cancer.
- Radiation wikiPageWikiLink Category:Concepts_in_physics.
- Radiation wikiPageWikiLink Category:Radiation.
- Radiation wikiPageWikiLink Cell_(biology).
- Radiation wikiPageWikiLink Chain_reaction.
- Radiation wikiPageWikiLink Chemical_bond.
- Radiation wikiPageWikiLink Cherenkov_radiation.
- Radiation wikiPageWikiLink Chernobyl_disaster.
- Radiation wikiPageWikiLink Coronal_mass_ejection.
- Radiation wikiPageWikiLink Cosmic_microwave_background.
- Radiation wikiPageWikiLink Cosmic_ray.
- Radiation wikiPageWikiLink Depleted_uranium.
- Radiation wikiPageWikiLink Dispersive_prism.
- Radiation wikiPageWikiLink Edward_Andrade.
- Radiation wikiPageWikiLink Effective_dose_(radiation).
- Radiation wikiPageWikiLink Electromagnetic_radiation.
- Radiation wikiPageWikiLink Electromagnetic_spectrum.
- Radiation wikiPageWikiLink Electrometer.
- Radiation wikiPageWikiLink Electron.
- Radiation wikiPageWikiLink Electronvolt.
- Radiation wikiPageWikiLink Energy.
- Radiation wikiPageWikiLink Equivalent_dose.
- Radiation wikiPageWikiLink Ernest_Rutherford.
- Radiation wikiPageWikiLink Gamma-ray_burst.
- Radiation wikiPageWikiLink Gamma_ray.
- Radiation wikiPageWikiLink Geiger_counter.
- Radiation wikiPageWikiLink Gravitational_wave.
- Radiation wikiPageWikiLink Hawking_radiation.
- Radiation wikiPageWikiLink Heinrich_Hertz.
- Radiation wikiPageWikiLink Helium-4.
- Radiation wikiPageWikiLink Henri_Becquerel.
- Radiation wikiPageWikiLink Infrared.
- Radiation wikiPageWikiLink Infrared_sensing_in_snakes.
- Radiation wikiPageWikiLink International_Commission_on_Radiological_Protection.
- Radiation wikiPageWikiLink International_Labour_Organization.
- Radiation wikiPageWikiLink Inverse-square_law.
- Radiation wikiPageWikiLink Iodine-131.
- Radiation wikiPageWikiLink Ionization.
- Radiation wikiPageWikiLink Ionizing_radiation.
- Radiation wikiPageWikiLink James_Clerk_Maxwell.
- Radiation wikiPageWikiLink Johann_Wilhelm_Ritter.
- Radiation wikiPageWikiLink Kelvin.
- Radiation wikiPageWikiLink Light.
- Radiation wikiPageWikiLink Linear_particle_accelerator.
- Radiation wikiPageWikiLink Marie_Curie.
- Radiation wikiPageWikiLink Meson.
- Radiation wikiPageWikiLink Microwave.
- Radiation wikiPageWikiLink Momentum.
- Radiation wikiPageWikiLink Muon.
- Radiation wikiPageWikiLink Mutation.
- Radiation wikiPageWikiLink Neutrino.
- Radiation wikiPageWikiLink Neutron.
- Radiation wikiPageWikiLink Neutron_activation.
- Radiation wikiPageWikiLink Neutron_activation_analysis.
- Radiation wikiPageWikiLink Neutron_radiation.
- Radiation wikiPageWikiLink Neutron_temperature.
- Radiation wikiPageWikiLink Non-ionizing_radiation.
- Radiation wikiPageWikiLink Nuclear_fission.
- Radiation wikiPageWikiLink Nuclear_fusion.
- Radiation wikiPageWikiLink Nuclear_reactor.
- Radiation wikiPageWikiLink Orders_of_magnitude_(numbers).
- Radiation wikiPageWikiLink Ozone_layer.
- Radiation wikiPageWikiLink Particle.
- Radiation wikiPageWikiLink Particle_accelerator.
- Radiation wikiPageWikiLink Particle_radiation.
- Radiation wikiPageWikiLink Paul_Ulrich_Villard.
- Radiation wikiPageWikiLink Photon.
- Radiation wikiPageWikiLink Physics.
- Radiation wikiPageWikiLink Pion.
- Radiation wikiPageWikiLink Planck_constant.
- Radiation wikiPageWikiLink Plancks_law.
- Radiation wikiPageWikiLink Point_source.
- Radiation wikiPageWikiLink Polonium.
- Radiation wikiPageWikiLink Positron.
- Radiation wikiPageWikiLink Proton.