Radioactive lead

Wikipedia about: Radioactive lead

History of discovery

Radioactivity was discovered in 1896 by the French scientist Henri Becquerel, while working on phosphorescent materials. These materials glow in the dark after exposure to light, and he suspected that the glow produced in by might be associated with phosphorescence. He wrapped a photographic plate in black paper and placed various phosphorescent salt on it. All results were negative until he used uranium salts. The result with these compounds was a blackening of the plate. These radiations were called Becquerel Rays.

It soon became clear that the blackening of the plate had nothing to do with phosphorescence, because the plate blackened when the mineral was in the dark. Non-phosphorescent salts of uranium and metallic uranium also blackened the plate. It was clear that there was a form of radiation that could pass through paper and was causing the plate to become black.

At first, it seemed that the new radiation was similar to the then recently discovered X-rays. Further research by Becquerel, Ernest Rutherford, Paul Villard, Pierre Curie, Marie Curie, and others discovered that this form of radioactivity was significantly more complicated. Different types of decay occur, producing very different types of radiation. Rutherford was the first to realize that they all decay in accordance with the same mathematical exponential formula (see below), and Rutherford and his student Frederick Soddy were the first to realize that many decay processes resulted in the







































































































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Radioactive Lead

Epa says st. louis athletic complex is safe from radioactive contamination

The Environmental Protection Agency said Thursday that its tests for radioactive contamination at an athletic complex in the St. Louis area show the facility is safe for continued public use and that "no additional environmental action is warranted ...
[Source: online.wsj.com]

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Final flight of european space vehicle to space station goes out with a 'big bang'

ESA's Haptics-1 body-mounted astronaut joystick will be used to investigate telerobotics for space aboard the International Space Station. Credit: European Space Agency. The fifth and final mission of the European Space Agency (ESA) Automated Transfer ...
[Source: phys.org]

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Marshall islands nuclear lawsuit reopens old wounds

“The claim against Israel is different from the claim against the U.S. The claim against Israel is based on customary international law with regard to nuclear disarmament,” Laurie Ashton, lead counsel for the Marshall Islands, said. The people of the ...
[Source: www.newsweek.com]

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Restoring america's greatness: countering the petro-islamist threat

Further, America will not be in any position of leadership in the energy field– nor in any fields built on energy, which are plenty—if other countries take the lead in fusion technology. In other words, he who controls energy controls the world. And ...
[Source: www.inquisitr.com]

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William james martin: hamas's fighting against israel is an honorable defense

Q: It's said that Israel, during the newly-launched Operation Protective Edge, like the 2008-2009 Operation Cast Lead, has used unconventional weaponry and chemical materials such as white phosphorus and depleted uranium against the civilians of the ...
[Source: english.farsnews.com]

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Uk enslaved to money... and fracking

Another risk is surface spills of chemicals and oil and the generation of large amounts of radioactive waste. Also, unlike a power station or an open-cast mine, fracking will not be in one single location. Thus, commercial production could potentially ...
[Source: rt.com]

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Blasts as experts finally reach mh17 crash site in ukraine

A defiant Moscow had warned Wednesday that fresh EU and US sanctions targeting its vital energy, arms and finance sector would backfire on the US and lead to energy price hikes in Europe. In a statement ... Lawmakers in Britain -- where a fresh probe ...
[Source: news.cubasi.cu]

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The slow death of nuclear power

However, the supposition of the country's technocratic elite was that just at fission research had led to both the atomic bomb and plants like the one at Shippingport, fusion breakthroughs would soon lead to controlled fusion reactions and reactors ...
[Source: www.mintpressnews.com]

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Some want clarification on epa's call that bridgeton athletic complex safe for ...

“We'd like to see an interpretation – a comparative analysis to other sites with Lead 210, and what that means for human health,” Smith says. “This is a high-use field.” Smith says the EPA is ignoring what happened in Dayton, Ohio. Radioactive levels ...
[Source: stlouis.cbslocal.com]

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The summer without a song

This summer, at weddings, birthday bashes and corporate mixers around the country, there's a song that always sets things off, at least for some people. "You play 'Fancy' and every girl in the room will scream and run to the dance floor," says Zac ...
[Source: online.wsj.com]

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