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Latest Leptons Stories

2010-04-16 12:53:44

Study refines predictions of what may constitute evidence of elusive particles Astrophysicists are looking everywhere "“ inside the Large Hadron Collider, in deep mines and far out into space "“ for evidence of dark matter, which makes up about 25 percent of the energy density of the universe. Despite the recent tantalizing observation of excess high-energy positrons "“ thought to be due to dark matter "“ UC Irvine researchers say we're not quite there yet. Models...

2010-03-15 06:50:00

PORTLAND, Ore., March 15 /PRNewswire/ -- Digital media company Neutrinos, LLC announced the development of Rock Show, an application for the Apple iPad which enables users to experience artwork from limited edition concert posters. The Rock Show application allows users to discover more about performing artists via quick links to both Wikipedia and the iTunes store. "We wanted to give music fans a chance to easily engage the artwork using the iPad's unique interface. Rock Show is what we...

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2010-02-25 14:11:16

Princeton engineers have made a breakthrough in an 80-year-old quandary in quantum physics, paving the way for the development of new materials that could make electronic devices smaller and cars more energy efficient. By reworking a theory first proposed by physicists in the 1920s, the researchers discovered a new way to predict important characteristics of a new material before it's been created. The new formula allows computers to model the properties of a material up to 100,000 times...

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2009-10-29 15:10:00

Does your laptop sometimes get so hot that it can almost be used to fry eggs? New technology may help cool it and give information technology a unique twist, says Jairo Sinova, a Texas A&M University physics professor. Sinova and colleagues from Hitachi Cambridge Laboratory, Institute of Physics ASCR, University of Cambridge and University of Nottingham have had their research published in the renowned journal Nature Physics. Laptops are getting increasingly powerful, but as their sizes...

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2009-10-15 09:40:00

Researchers have unearthed a magnetic force similar to electricity: magnetic charges that act and interrelate like electrical charges. This is the first known use of the magnetic monopoles that subsist in spin ice crystals. A research team wrote that monopoles have the ability to group together and form a "magnetic current" similar to electricity. Called "magnetricity", this new discovery may be utilized in magnetic storage or computers. Magnetic monopoles were first thought to be present a...

2009-08-17 19:52:32

Recently, several astronomical experiments have revealed mysterious components of elementary particles. But up until now, the origin of electrons and positrons is unknown. Is dark matter the actual origin of this radiation, as some physicists speculate? Now an international team of astrophysicists, including the Bochum junior professor Dr. Julia Becker and the Dortmund physicist Prof. Dr. Dr. Wolfgang Rohde, have found a simple explanation: giant stars, at least fifteen times the mass of our...

2009-08-17 08:26:18

A project to fire neutrinos through the earth from Illinois to northern Minnesota is back on track because of U.S. stimulus funds, officials say. The Fermilab project, called Nova, has been suspended due to funding problems, but now $40 million is going to build a neutrino detector in Minnesota and another $103 million is heading to Fermilab for other aspects of the project, including a move to boost the power of the neutrino beam, The Washington Post reported Monday. Neutrinos are elementary...

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2009-08-16 10:00:00

Will the universe expand outward for all of eternity and end in a vast, dark, cold, sterile, diffuse nothingness? Or will the "Big Bang" "” the gargantuan explosion that formed the universe 14 billion years ago "” end in the "Big Crunch?" Planets, stars and galaxies all hurtle inward and collapse into an incredibly hot, dense mass a billion times smaller than the period at the end of this sentence. And then "¦ KA-BOOOOM!!! Another Big Bang and another universe forms and...

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2009-07-23 09:33:53

A team of researchers working with data from ESA's Integral gamma-ray observatory has disproved theories that some form of dark matter explains mysterious radiation in the Milky Way. That this radiation exists has been known since the 1970s, and several theories have been proposed to explain it. Integral's unprecedented spectral and spatial resolution showed that it strongly peaks towards the center of the Galaxy, with an asymmetry along the Galactic disc. Several researchers have...

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2009-07-09 06:20:00

A team of astrophysicists has solved a mystery that led some scientists to speculate that the distribution of certain gamma rays in our Milky Way galaxy was evidence of a form of undetectable "dark matter" believed to make up much of the mass of the universe. In two separate scientific papers, the most recent of which appears in the July 10 issue of the journal Physical Review Letters, the astrophysicists show that this distribution of gamma rays can be explained by the way "antimatter...


Latest Leptons Reference Libraries

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2004-10-19 04:45:41

Solar Radiation -- Solar radiation is radiant energy emitted by the sun due to nuclear fusion reactions. Fusion is the process whereby stars produce huge quantities of energy from the fusion of hydrogen or helium, in one of the most efficient processes of energy generation. The radiation referred to is usually electromagnetic energy, particularly infrared radiation, visible light, and ultraviolet. Some stars are known to emit radiation of other wavelengths. Solar neutrinos are a...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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