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Stories about: radioactive |
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One of the most long-lasting satellites that the Soviet Union placed into orbit some 21 years ago has now started acting up, spilling a trace of unidentified substances along its orbit, American observatories report. The January issue of the journal Orbital Debris Quarterly News details the nature of the spill, which... |
16 January 2009
02:48 GMT |
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1.What makes too many people on this planet for too few resources? The demographic boom, increased carbon dioxide emissions, the thinning ozone layer, deforestation and soil erosion. 2.The global warming will raise in 100 years Earth's temperature by 1.4-5.8o C, and this is already increasing the sea level. The ... |
5 December 2007
10:49 GMT |
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This is the most widely employed method of absolute dating: the radioactive isotope of the carbon, 14C. In the '40s, William Libby discovered that, with the passing of time, the 14C present in all dead organisms breaks down at a rhythm that can be measured. This finding found immediate applications in the newly ... |
9 August 2007
15:41 GMT |
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Radioactive batteries, also known as atomic batteries, are electricity storage devices which use the charged particle emissions from a radioactive isotope to directly generate electricity. Recently, this old idea has been reinvented by, who else, DARPA (Defense Advanced Projects Research Agency), in search of new hi... |
9 July 2007
11:02 GMT |
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A good wine does not come cheap. Usually, if you go to a European country with tradition on wines, all that is under $8 dollars per liter could be discarded. Of course, the most exquisite wines can reach hundreds of dollars and in luxury restaurants this can go further. But what about a bottle of wine costing $ 160,0... |
29 June 2007
15:11 GMT |
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One of Russia's biggest radioactive waste storage facilities, located in the Kola Peninsula, in the Northwest, is, according to environmentalists, a ticking bomb, ready to explode in a short time if no countermeasures are taken.The blast would be worse than the accident at the Chernobyl nuclear plant in 1986, a... |
5 June 2007
03:42 GMT |
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Radiation detectors are devices used to detect, track, and/or identify high-energy particles, such as those produced by nuclear decay, and are used by most US law enforcement agencies to scan for X-rays and gamma rays emitted by sources like nuclear explosive dives, dirty bombs and other illegal devices.However, even... |
2 June 2007
05:18 GMT |
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Astronomers have recently measured the age of a star located in our Galaxy and discovered that it's a real fossil in space, being 13.2 billion years old. For comparison, the entire Universe, from the Big Bang, is only 13.7 billion years old, a very small difference in cosmic time.The star's name is HE 1523... |
11 May 2007
08:28 GMT |
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Radiation is truly the invisible killer. Coming in the form of waves or moving subatomic particles, it's unheard and unseen and can only be felt after some time, when it's usually too late for a treatment. Currently, there is no effective treatment for radiation poisoning (also called radiation sickness),... |
8 May 2007
06:43 GMT |
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Radium (Ra) is a rare element, almost pure white, extremely radioactive and found in trace amounts in uranium ores. It is luminescent, giving a faint blue color and reacts violently with water.A group of physicists led by Argonne Compton Postdoctoral Fellow Jeffrey Guest of Argonne's Physics Division has been ... |
2 May 2007
04:36 GMT |
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A nuclear isomer is a metastable state of an atomic nucleus caused by the excitation of one or more of its protons or neutrons or both. It occupies a higher energy state than the corresponding non-excited nucleus, called the ground state. The nuclear isomer will sooner or later release the extra energy and decay int... |
6 April 2007
04:44 GMT |
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Plutonium is a radioactive, metallic chemical element, and has been called "the most complex metal" and "a physicist's dream but an engineer's nightmare" for its peculiar physical and chemical properties.It is the element used in most modern nuclear weapons and power plants, and contrary to popular beliefs... |
5 April 2007
09:58 GMT |
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