Cosmic rays are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from the Sun, from outside of the Solar System in our own galaxy, and from distant galaxies. Upon impact with Earth's atmosphere, cosmic rays produce showers of secondary particles, some of which reach the Web1 day ago · The radioactive isotope forms continuously in the upper atmosphere as cosmic rays—high-energy particles from space—collide with gas molecules, spawning neutrons. When one of these neutrons knocks out a proton in a nitrogen atom, that nitrogen is transformed into 14 C. As it inhaled CO 2, the cedar had incorporated the 14 C into its wood.

I Spy With My Little Muon: Peering Inside Pyramids With Cosmic Rays …

WebFrom the acclaimed Bell Telephone TV series....http://en.wikipedia.org/wiki/The_Bell_Laboratory_Science_Series WebCosmic rays are charged subatomic particles that constantly rain down on Earth from all directions. “They’re called rays, but they are actually particles,” explains Stefan Westerhoff, … headers aiohttp

Marking time: Cosmic ray storms can pin precise dates on history …

WebSep 30, 2003 · Product Dimensions ‏ : ‎ 7.75 x 5.75 x 0.53 inches; 2.4 Ounces Media Format ‏ : ‎ Multiple Formats, Animated, Color, NTSC Run time ‏ : ‎ 1 … WebHundreds of years ago, cosmic ray fluxes were at least 200% higher than they are now. Researchers know this because when cosmic rays hit the atmosphere, they produce an isotope of beryllium, 10Be, which is preserved in polar ice. By examining ice cores, it is possible to estimate cosmic ray fluxes more than a thousand years into the past. WebGalactic cosmic rays come from outside the solar system. They are subatomic particles--mainly protons but also some heavy nuclei--accelerated to almost light speed by distant … headers amino