Search results for "Radiation" - New World Encyclopedia
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- The greenhouse effect is the process in which long wave radiation (infrared) emitted by the earth surface is absorbed by atmospheric gases only ...23 KB (3,592 words) - 23:26, 17 February 2023
- are the most energetic form of electromagnetic radiation and are produced by phenomena such as explosions and high-speed collisions. Thus, gamma-ray ...10 KB (1,437 words) - 04:09, 18 April 2024
- harmful, high-frequency ultraviolet (UV) radiation emitted by the Sun. ... UV radiation is divided into three categories, based on its wavelength; ...14 KB (2,217 words) - 06:05, 18 November 2022
- and in terms of its potential for radiation induced health effects, 227Ac is even more dangerous than plutonium. Ingesting even small amounts ...7 KB (911 words) - 05:39, 15 June 2023
- (force carriers), or the constituents of radiation. The quantum fields of ... one example of which is black-body radiation; another is the thermal ...10 KB (1,425 words) - 17:22, 22 December 2022
- that sound and light (electromagnetic radiation) can also be described ... * Electromagnetic radiation, which is constituted of radio waves ...13 KB (2,010 words) - 23:20, 3 May 2023
- other costs, such as its foundations, radiation shielding, and the enclosing ... to penetrate the body and kill tumors by radiation damage, while minimizing ...12 KB (1,883 words) - 06:53, 12 January 2024
- The beam is not always electromagnetic radiation, although X-rays are the ... The three types of radiation—X-rays, electrons, and neutrons—interact ...12 KB (1,754 words) - 06:35, 11 January 2024
- flexibility, and accuracy of the radiation beam produced has largely ... in that the particles emit synchrotron radiation. When any charged particle ...19 KB (2,915 words) - 18:45, 23 March 2023
- and the Cosmic Microwave Background Radiation. The development of radio ... equations had shown that electromagnetic radiation from stellar sources could ...12 KB (1,739 words) - 22:45, 7 December 2022
- Compton scattering is of prime importance in radiation therapy. In ... nuclei in living beings and is applied in radiation therapy. ...11 KB (1,638 words) - 00:23, 8 January 2024
- form in the center, and their ultraviolet radiation ionizes the surrounding ... temperature increases and the ultraviolet radiation it emits is capable of ...9 KB (1,435 words) - 16:07, 11 November 2022
- the absorption of energy from electromagnetic radiation such as x-rays or visible light.Raymond A. Serway, Physics for Scientists & Engineers ...23 KB (3,443 words) - 04:26, 24 November 2022
- he produced and detected electromagnetic radiation in a wavelength range today ... When others wished to name the new radiation after him, he indicated ...11 KB (1,777 words) - 10:38, 5 May 2023
- in controlled doses to treat cancer by radiation therapy. In addition, radon ... In the United States, the National Council on Radiation Protection ...15 KB (2,200 words) - 22:50, 7 December 2022
- Organic matter influences the atmospheric radiation field by both scattering ... affects how it interacts with solar radiation. The chemical constituents ...18 KB (2,652 words) - 08:57, 18 November 2022
- of the surrounding air. Nearly all alpha radiation can be easily stopped by ... emissions are controlled, thus minimizing radiation hazards. ...11 KB (1,554 words) - 08:39, 24 November 2022
- rays, the cosmic microwave background radiation, and the composition of ... * In radio astronomy, scientists study radiation with a wavelength ...14 KB (1,947 words) - 18:28, 19 August 2023
- Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than soft X-rays. The name ...28 KB (4,293 words) - 11:30, 18 April 2023
- that may be occurring at or near the radiation sources. ... Nearly all of the X-ray radiation from cosmic sources is absorbed ...11 KB (1,662 words) - 14:15, 20 May 2023
- amount of 241Am as a source of ionizing radiation. In addition, this isotope ... of 241Am as a source of ionizing radiation. 241Am has been used as ...9 KB (1,328 words) - 06:50, 25 July 2023
- At least some of the heating comes from the sunlight, i.e. solar radiation ... As solar radiation warms the air near the ground, this air rises, ...9 KB (1,397 words) - 19:14, 28 November 2021
- it is used in controlled doses for radiation therapy for certain types ... and stored with extreme care. Exposure to radiation from this element can lead ...13 KB (1,820 words) - 22:47, 7 December 2022
- ** Radiation treatment of foods for sterilization (cold pasteurization). ... which means that the edge of the radiation field is fuzzy. The metal ...13 KB (1,769 words) - 22:14, 7 January 2024
- particles. He also investigated the radiation emissions of radioactive ... rendered by their joint researches on the radiation phenomena discovered by ...14 KB (2,057 words) - 05:21, 24 November 2022
- material by selective exposure to a radiation source such as light. A photosensitive material is a material that experiences a change in its ...14 KB (2,096 words) - 10:39, 10 March 2023
- Planets also lose energy by infrared radiation (that Fourier called "chaleur ... Fourier recognized that Earth primarily gets energy from solar radiation ...13 KB (2,004 words) - 00:38, 11 August 2022
- to the different forms of electromagnetic radiation, from radio waves at the ... that hot objects emit electromagnetic radiation in discrete packets, which ...14 KB (1,902 words) - 15:57, 13 February 2024
- 151°C (303°F), one thousand times more radiation than any other animal ... *Radiation. As shown by Raul M. May from the University of Paris, ...13 KB (1,883 words) - 04:32, 27 February 2023
- but produces a large amount of neutron radiation from spontaneous fission ... Curium bio-accumulates in bone tissue where its radiation destroys ...10 KB (1,354 words) - 06:46, 12 January 2024
- overseen by the University of California Radiation Laboratory, Argonne National ... H. Higgins, Glenn T. Seaborg (from the Radiation Laboratory and Department ...7 KB (998 words) - 17:26, 26 March 2024
- Radioactive decay is the process by which an excited, unstable atomic nucleus loses energy by emitting radiation in the form of particles or ...30 KB (4,559 words) - 22:46, 7 December 2022
- particles (later named the Van Allen radiation belt), trapped by the earth’s ... to test a theory about the formation of radiation belts that may have tactical ...23 KB (3,695 words) - 05:21, 5 November 2022
- plasma, as well as electromagnetic radiation. Hypothetically, it also ... becomes insignificant when compared to radiation pressure from the sun and ...19 KB (2,762 words) - 05:59, 18 November 2022
- neutron star, which emits pulses of radiation from gamma rays to radio ... The Crab Nebula acts as a source of radiation for studying celestial ...23 KB (3,450 words) - 06:15, 11 January 2024
- subjecting berkelium to intense neutron radiation in a nuclear reactor. ... and brain cancers, in cases where other radiation therapy is ineffective. ...11 KB (1,466 words) - 18:27, 25 November 2023
- nuclear reactors and as a shield against radiation from radioactive materials. ... in nuclear reactors, as a shield against radiation and in neutron detection. ...16 KB (2,239 words) - 19:45, 20 November 2023
- The ozone layer absorbs ultraviolet solar radiation that could damage living ... ozone layer that absorbs ultraviolet (UV) radiation from the Sun—radiation ...24 KB (3,540 words) - 17:34, 12 February 2024
- are radioactive. As a source of beta radiation, it is used in thickness ... * Beta radiation source for thickness gauges. * Light source for signals ...11 KB (1,429 words) - 23:55, 1 December 2022
- #039;s climate, based on the amount of radiation they reflect and absorb ... so that the intensity of the solar radiation decreases with depth into ...17 KB (2,628 words) - 22:12, 7 January 2024
- In modern physics, the photon is the elementary particle responsible for electromagnetic phenomena. It is the carrier of electromagnetic radiation ...34 KB (4,943 words) - 20:26, 27 September 2023
- X-rays (or Röntgen rays) are a form of electromagnetic radiation with a wavelength in the range of 10 to 0.01 nanometers, corresponding to frequencies ...25 KB (3,822 words) - 14:14, 20 May 2023
- logic gates in electronic devices; for radiation and particle detectors; ... are also used as large volume ionizing radiation detectors and as photodetectors ...25 KB (3,818 words) - 17:12, 22 July 2020
- climate is the constant ultra violet radiation that streams into the ocean from the Antarctic ozone hole. As the ozone hole continues to expand ...9 KB (1,422 words) - 15:39, 4 February 2023
- Marie correctly maintained that the radiation emanating from them was ... by their joint researches on the ionizing radiation phenomena discovered by ...18 KB (2,796 words) - 04:14, 6 November 2022
- The Earth's atmosphere is opaque to ultraviolet radiation, X-rays, and gamma rays, and partially opaque to infrared radiation. Therefore ...10 KB (1,374 words) - 19:55, 17 November 2022
- that is approximately water equivalent for use in radiation therapy dosimetry. Anthracenes emission spectrum peaks at between 400nm and 440nm. ...4 KB (576 words) - 05:54, 31 July 2023
- light; diamonds also emit light under X-ray radiation. Crude oil (petroleum ... where { k}_{ f} is the rate of spontaneous emission of radiation and ...15 KB (2,287 words) - 17:45, 28 March 2024
- the elementary constituents of matter and radiation, and the interactions between ... had also discovered three types of radiation coming from atoms, which ...18 KB (2,740 words) - 00:29, 17 November 2022
- detection and analysis of electromagnetic radiation and ... the detection and analysis of infrared radiation (wavelengths longer than ...16 KB (2,316 words) - 18:26, 19 August 2023
- the existence of electromagnetic radiation waves by building an apparatus to produce and detect them. His discovery was a key step on the path ...15 KB (2,237 words) - 15:17, 25 January 2023
- with heat transfer due to convection and radiation. It is measured in the ... *thermal transmittance (U value) = 1/(Σ(L/k)) + convection + radiation ...17 KB (2,527 words) - 18:28, 30 April 2023
- transfer: convection, conduction, and radiation. They are good convective ... Silica aerogel strongly absorbs infrared radiation. It allows the ...18 KB (2,574 words) - 05:49, 16 June 2023
- cells that respond to electromagnetic radiation in the visible range. ... * The optic radiation * The visual cortex The visual system allows ...14 KB (2,075 words) - 20:09, 21 April 2023
- In cosmology, the cosmic microwave background radiation CMB (also CMBR, CBR, MBR, and relic radiation) is a form of electromagnetic radiation ...47 KB (6,936 words) - 08:12, 10 January 2024
- the students solved problems such as radiation protection from cosmic ... Radiation: Space radiation has two distinct problems. One is that ...20 KB (3,078 words) - 19:03, 7 February 2023
- end of the Permian period allowed for the radiation of many new lifeforms. ... Cretaceous provided for further adaptive radiation. The Jurassic was the height ...11 KB (1,570 words) - 10:34, 10 March 2023
- Cockroaches do indeed have a much higher radiation resistance than vertebrates ... The cockroach's ability to withstand radiation better than human ...21 KB (3,077 words) - 22:18, 7 January 2024
- Uranus. He also discovered infrared radiation and made many other discoveries ... 1800 reported the discovery of infrared radiation by passing sunlight through ...13 KB (1,978 words) - 10:59, 9 May 2023
- In 1900, to solve a vexing problem concerning the radiation emitted ... ===Black-body radiation=== In 1894, Planck had been commissioned by ...30 KB (4,449 words) - 00:57, 9 November 2022
- Around the same time, the concept that electromagnetic radiation is ... Albert Einstein proposed that the energy of electromagnetic radiation ...20 KB (3,162 words) - 21:09, 26 February 2023
- harmful external influences such as radiation and micrometeorites. Components ... environmental considerations such as radiation, gravity, noise, vibration ...11 KB (1,632 words) - 01:14, 26 October 2022
- . This localization focuses the radiation exposure on the cancerous lesion. *The radioisotope 90Sr is also used in cancer therapy. Its beta emission ...14 KB (1,860 words) - 21:04, 26 February 2023
- place, the heat is transferred mainly by radiation to tubes around the fire ... tubes receive almost all their heat by radiation from the flame. In a vertical ...23 KB (3,523 words) - 09:57, 18 October 2022
- table, it was found at the Berkeley Radiation Laboratory of the University ... ground state of 236U by emitting gamma radiation. Further neutron capture ...11 KB (1,451 words) - 16:21, 11 November 2022
- Solar radiation also affects the oceans. Warm water from the Equator ... * Thermal radiation == Notes == ==References== * Bejan, Adrian. Convection ...11 KB (1,793 words) - 02:51, 8 January 2024
- In common usage, the term light (or visible light) refers to electromagnetic radiation in a wavelength range that is visible to the human eye ...39 KB (6,028 words) - 01:15, 26 October 2022
- The speed of all electromagnetic radiation in vacuum is the same, ... Therefore, if v is the phase velocity of radiation of a specific frequency ...21 KB (3,222 words) - 03:01, 8 December 2022
- and groundwater. This cycle is driven by radiation from the Sun. The movement ... The source of energy is primarily solar radiation. Evaporation is closely ...15 KB (2,199 words) - 23:16, 3 May 2023
- ==Dipole radiation== In addition to dipoles in electrostatics, it is also common to consider an electric or magnetic dipole that is oscillating ...20 KB (3,037 words) - 15:26, 29 January 2024
- Infrared saunas use a special heater that generates infrared radiation rays similar to that produced by the sun. Unlike the sun’s ultraviolet ...15 KB (2,539 words) - 17:06, 23 December 2022
- does not interact with electromagnetic radiation, such as light. photons (the cosmic microwave background radiation) and neutrinos from the ...26 KB (3,829 words) - 22:20, 25 January 2024
- === Thermopile radiation sensors === Thermopiles are used for measuring the intensity of incident radiation ...22 KB (3,206 words) - 18:29, 30 April 2023
- time as the start of the main kestrel radiation, about 2 million years ... that the most successful evolutionary radiation initially was an Holarctic ...17 KB (2,440 words) - 01:46, 29 June 2022
- Yttrium (chemical symbol Y, atomic number 39) is a lustrous, silvery metal that is found in most rare-earth minerals. It is relatively stable ...12 KB (1,634 words) - 21:34, 4 June 2023
- # An umbra, where the radiation from the star's photosphere is ... # A penumbra, where only a portion of the radiation is blocked.Fred ...20 KB (3,193 words) - 18:01, 12 February 2024
- various altitudes and blocking of ultraviolet radiation.]] it absorbs biologically harmful UV radiation emitted from the Sun. UV ...30 KB (4,607 words) - 06:05, 18 November 2022
- to be the maximum speed any object or radiation can attain in the universe.]] ... the maximum speed limit for any object or radiation in the universe, is expressed ...22 KB (3,290 words) - 05:07, 24 November 2022
- Discharge produce large amounts of UV radiation and therefore need diffusers ... insulation, protection from ultraviolet radiation, and a convenient mounting ...36 KB (5,574 words) - 23:52, 12 February 2022
- the first demonstration of annihilation radiation for medical imaging. ... The minimization of radiation dose to the subject is an attractive ...26 KB (3,835 words) - 05:46, 30 November 2022
- Cosmic rays form a fraction of the annual radiation that people on ... blue-shifted cosmic microwave background radiation limit the distance that ...37 KB (5,720 words) - 08:13, 10 January 2024
- to denaturation by protease, heat, radiation, and formalin treatments, ... Radiation biologist Tikvah Alper and physicist J. S. Griffith developed ...17 KB (2,526 words) - 23:00, 30 November 2022
- alpha particles (helium nuclei) in the Berkeley Radiation Laboratory's 60-inch cyclotron (256Md was the first element to be synthesized one-atom ...6 KB (778 words) - 04:30, 9 November 2022
- can be used to identify sources of radiation. Germanium dioxide is useful ... can precisely identify sources of radiation. These devices can be useful ...13 KB (1,672 words) - 18:19, 21 May 2024
- In 1924 Bose wrote a paper deriving Planck's quantum radiation law without any reference to classical physics. After initial setbacks to ...13 KB (1,968 words) - 17:03, 23 December 2022
- viewers see these beams as pulses of radiation whenever the magnetic pole ... stars that emit directed pulses of radiation towards us at regular intervals ...14 KB (2,170 words) - 16:26, 11 November 2022
- * Magill, Joseph, and Jean Galy. Radioactivity Radionuclides Radiation. Berlin: Springer, 2004. ISBN 3540211160 * Brown, G.I. Invisible Rays: ...8 KB (1,160 words) - 16:04, 3 August 2023
- measurement of temperature and optical radiation in addition to mechanical ... as a certain multiple of a specific radiation wavelength, and currently ...15 KB (2,449 words) - 18:28, 22 December 2022
- (NIR and IR) and ultraviolet (UV) radiation and X rays. The visible ... known as the "auroral kilometric radiation" (AKR), discovered ...25 KB (3,925 words) - 17:52, 22 August 2023
- electrons) to form showers of ionizing radiation that precede the ICME. ... particles are trapped in the Van Allen radiation belt. A smaller number ...23 KB (3,443 words) - 00:46, 4 February 2023
- americium-241, which is a source of alpha radiation. The radiation passes through an ionization chamber, which is an air-filled space between ...15 KB (2,419 words) - 14:59, 27 April 2023
- A laser (an acronym for Light Amplification by Stimulated Emission of Radiation) is an electronic-optical device that emits coherent radiation ...41 KB (6,333 words) - 06:55, 4 March 2023
- (such as the measurements and analysis of radiation from myriads of stars) ... to carry this energy through the star are radiation and convection, with the ...39 KB (5,825 words) - 10:55, 9 March 2023
- |homology]] illustrated by the adaptive radiation of the forelimb of mammals ... mouthparts.png|thumb|left|250px|Adaptive radiation of insect mouthparts: a ...16 KB (2,329 words) - 16:13, 25 January 2023
- that does not emit or reflect electromagnetic radiation. Although it cannot be observed directly, its presence can be inferred from gravitational ...31 KB (4,554 words) - 22:23, 25 January 2024
- into their central black holes to generate radiation. == Properties ... Quasars exhibit many of the same properties as active galaxies: Radiation ...16 KB (2,372 words) - 15:39, 7 December 2022
- and shielding to protect against ionizing radiation. Lead (II) acetate is used ... *Lead is used to form shielding from harmful (ionizing) radiation ...18 KB (2,664 words) - 18:43, 25 October 2022
- discovery of cosmic microwave background radiation in 1964.A.A. Penzias and ... of the cosmic microwave background radiation in 1964 secured the Big ...58 KB (8,668 words) - 03:46, 1 October 2023
- Greenhouse gases also emit longwave radiation both upward to space ... and O2 neither absorb nor emit infrared radiation, as there is no net change ...34 KB (4,898 words) - 17:16, 16 February 2023
- used to reduce the dynamic range of the radiation reaching the detectors ... same acquisition, saving both time and radiation exposure. ...61 KB (9,364 words) - 00:24, 8 January 2024
