Cosmic Rays
Although the name would suggest that cosmic rays are some form of electromagnetic radiation, they are actually subatomic particles travelling at significant fractions of the speed of light.
cosmic rays n.
Notionally, the cause of bit rot. However, this is a semi-independent usage that may be invoked as a humorous way to handwave away any minor randomness that doesn't seem worth the bother of investigating.
Cosmic rays efficiently accelerated by exploded stars
BY DR EMILY BALDWIN
ASTRONOMY NOW
Posted: June 26, 2009 ...
Cosmic Rays
Cosmic-ray Composition
Because cosmic rays don't point back to their sources, we must use indirect methods to determine their sources and the way they have traveled (or "propagated") through the Galaxy.
Cosmic Rays:
A cosmic ray is a high-speed particle--either an atomic nucleus or an electron--that travels throughout the Milky Way Galaxy, including the solar system.
Cosmic Rays
Atoms and molecules in our everyday environment move relatively sedately, and the energy of each of them is small.
Cosmic Rays: Cosmic rays are very high energy atomic nuclei (mostly protons) traveling through space at close to the speed of light that strike the Earth's atmosphere.
Cosmic rays: Extremely high-energy subatomic particles that continuously bombard Earth from all directions. Most cosmic rays hit and break up atomic nuclei in the upper atmosphere.
Cosmic rays. High velocity particles reaching Earth from outer space. The heavier cosmic ray particles are broken up when they enter Earth's upper atmosphere.
Cosmogony. The study of the origin and evolution of the universe.
Cosmic rays are energetic particles originating from space that impinge on Earth's atmosphere. Almost 90% of all the incoming cosmic ray particles are protons, about 9% are helium nuclei and about 1% are electrons ....
s. Henrik Svensmark ...
SOLAR COSMIC RAYS - Cosmic rays with energies ~107 to 1010 eV, primarily ejected solar flares and coronal mass ejections (CME).
Primary Cosmic Rays
The cosmic rays that arrive at Earth's upper atmosphere from outer space (see also Secondary Cosmic Rays).
Primary Theory ...
Cosmic rays also cause elemental transmutation in the atmosphere, in which secondary radiation generated by the cosmic rays combine with atomic nuclei in the atmosphere to generate different radioactive isotopes.
Cosmic rays may broadly be divided into two categories, primary and secondary.
Cosmic rays were initially considered to come from some source other than the Sun. This was because the Sun was thought to emit little but visible light, and, of course, cosmic rays are isotropic and would arrive at Earth from all directions.
Cosmic rays A stream of particles that have been accelerated to almost the speed of light in space. Some enter the Earth's atmosphere and bombard atmospheric atoms.
More about cosmic rays...
Cosmic Rays
High-energy atomic particles that travel through space at speeds close to the speed of light; also known as cosmic-ray particles.
Doppler Effect ...
Cosmic rays are thought to be - along with the radioactive rocks of the Earth - a main cause of mutations, the changes in the genetic code in living things that lead to the evolution of the species.
cosmic rays - Atomic nuclei (mostly protons) that are observed to strike the earth's atmosphere with exceedingly high energies.
cosmology - The study of the organization and evolution of the universe.
Cosmic rays
High-speed particles that reach the Earth from Outer Space.
Cosmology ...
Cosmic rays have been hypothesized to affect formation of clouds through possible effects on production of cloud condensation nuclei. Observational evidence for such a relationship is inconclusive.
COSMIC RAYS
Cosmic rays are very high energy particles that travel through space near the speed of light. The 10 most abundant elements in cosmic rays are hydrogen, helium, oxygen, carbon, neon, nitrogen, magnesium, silicon, iron, and sulfur.
The cosmic rays arriving at the top of the earth's atmosphere.
primary mirror - (n.)
The principal light-gathering mirror in a reflecting telescope.
[6.1] COSMIC RAYS / THE CLOUD CHAMBER / THE DISCOVERY THE POSITRON
[6.2] THE DISCOVERY OF THE MUON & PION
[6.3] NUCLEAR ENERGY LEVELS / LIQUID DROP MODEL ...
13. Cosmic rays are very energetic photons. (Hint)
14. Most of the mass of our Galaxy exists in the form of dark matter. (Hint)
15. The Galactic center has been extensively studied at visible and ultraviolet wavelengths. (Hint) ...
Discovered cosmic rays.
NRL V-2 rocket - USA - (1946)
First observation of the Sun's UV spectrum.
cascade shower (NASA SP-7, 1965) A group occurrence of cosmic rays. Also called air shower.
secondary cosmic rays Secondary emission in the atmosphere stimulated by primary cosmic rays. See air shower. secondary electron emission The release of electrons from a surface which is bombarded by energetic electrons.
(c) High-energy charged particles (about 85% protons, 14% -particles, 1% electrons, 7 - 1010 eV) cosmic rays during Solar flares (those of lower energy than this are unobservable from Earth because of Solar system magnetic fields).
The GRS was designed to record the spectrum of gamma rays emitted by the radioactive decay of elements contained in the moon's crust and elements in the crust bombarded by cosmic rays and solar wind particles.
Cosmic Rays describes the Cosmic ray Air Shower Array at Louisiana State University and has a handy section explaining how photomultiplier tubes work.
High-energy galactic cosmic rays--primarily protons--have a range of penetration on the order of a few metres in meteoritic material. Any meteoroid of smaller dimensions will be radiated throughout by this proton bombardment.
Atmospheres moderate the heat lost to space at night and shield the planet surface from energetic radiation like solar ultraviolet and X-rays and the high-speed charged particles in solar wind and most cosmic rays (extremely high-energy particles ...
magnetic fields, the flux of cosmic rays and micrometeorites, and properties of celestial objects that are difficult or impossible to observe from the earth.
This distribution is similar to that of local cosmic rays (and for that matter the energetic particles producing bogus photon detections in CCDs and the like) and implies some kind of self-similar or scale-free acceleration mechanism.
It revealed Mars once had a magnetic field when its magnetometer detected the remains of a field that once had shielded Mars' surface from deadly cosmic rays.
The tank is down in the mine to help shield it from cosmic rays. The mile of rock overhead doesn't represent an obstacle for the neutrinos.
In 2266, a solar flare accompanied by high levels of Cosmic rays was discharged by the sun in the Minarian star system.
What reduces the intensity of the cosmic rays in the inner part of the solar system?
What causes auroras?
Wmat makes up the atmosphere on Mars?
Who was Cleomedes?
What made Cleomedes famous?
When was William Parsons Rosse, 3d earl of born?
Our home planet is continuously bombarded by energetic particles, cosmic rays, dust and - occasionally - larger objects, all of which can be hazardous to human life.
Van Allen, J. A. "Magnetospheres, Cosmic Rays, and the Interplanetary Medium." Ch. 3 in The New Solar System, 3rd ed. (Ed. J. K. Beatty and A. Chaikin). Cambridge, England: Cambridge University Press, pp. 34-40, 1990.
Proposed supernova could produce cosmic rays and neutron stars, first resolved stars in Andromeda galaxy, defined Population I and II stars and two kinds of Cepheid variables.
12. HUBBLE Edwin (1889 - 1953) ...
Cosmic and Heliospheric Learning Center--Home Page--cosmic rays and the heliosphere (9-12)
Space Sites
Goddard Space Flight Center Education Inspiring Inquisitive Minds--teacher resources for K-12 ...
Atmospheric neutrinos result from the interaction of cosmic rays with atoms in the Earth's atmosphere, creating showers of particles, many of which are unstable and produce neutrinos when they decay.
Solar Neutrinos ...
The highest energy particles in the interplanetary medium are called cosmic rays. Some are of solar origin; the most energetic, however, originate in some other unknown and very energetic processes outside our solar system.
Millikan named "cosmic rays" in 1928, while studing the radiation from space. He won the Nobel Prize for Physics in 1923 for his work on the electron's charge and his work on the photoelectric effect. Millikan wrote many books.
Cosmic Ray - Extremely energetic ions and electrons that travel through space almost at the speed of light. Most cosmic rays come from great distances and may be produced in supernovas and pulsars ...
the process of altering the surface of an object in space by such phenomena as micrometeoroid impacts, cosmic rays, and the solar wind
space-time ...
Not surprising, the Sun's magnetic field permeates interplanetary space. The magnetic field of the Sun influences the way in which charged particles (cosmic rays, solar energetic particles, and even interstellar dust grains) move through the ...
Darker areas may primordial organic material or the result of photochemical reactions driven by cosmic rays. In general, Pluto is somewhat brighter and pinker than its moon Charon.
The sphere contained instruments which, for 21 days, radioed data concerning cosmic rays, meteoroids, and the density and temperature of the upper atmosphere.
electromagnetic radiation of a very short wavelength and very high-energy. X-rays have shorter wavelengths
than ultraviolet light but longer wavelengths than cosmic rays.
degree in environmental science at Medgar Evers College, part of the City University of New York, said the contest challenged him to learn more about the environment on the moon and the risks to astronauts. He researched dangers like cosmic rays and ...
Because of the lack of any atmosphere the temperature of the Moon's surface varies between -180°C and +110°C. The Moon offers little protection from the solar wind, cosmic rays or micrometeorites and so it is not surprising that there is no form of ...
From creating an all-sky map which allowed scientists to better understand the interaction between cosmic rays and interstellar dust, to studying the mysterious phenomenon of gamma-ray bursts, ...
It is speculated that the absence of water is because most water that may have initially been on Venus made its way to the upper atmosphere, where it was broken down by sunlight and interactions with cosmic rays and the solar wind into oxygen and ...
 See also: Cosmic Ray, Rays, Earth, Energy, Solar
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