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Stories about: decay


The Sun Influences the Decay of Radioactive Elements

In spite of being located no less than 93 million miles away from Earth, the Sun appears to be influencing the decay of radioactive elements inside research labs on the planet.The conclusion belongs to a new investigation, which was carried out by experts at the Purdue University and the Stanford University. The prob...

25 August 2010
11:05 GMT

Sony Patents Videogames That Decay over Time

Sony Computer Entertainment has recently obtained a new patent from the United States Patent & Trademark Office linked with the idea of delivering full games to players for free but with the added concept that after a while, they are set to begin decaying and offer an ever smaller game experience as time goes by unti...

9 March 2010
14:31 GMT

Where Helium Comes from

Although being the second most abundant element in the universe, making for up to 23 percent of all ordinary matter, helium is one of the most scarce elements on Earth, having a concentration averaging about 5.2 parts per million in Earth's atmosphere. Some studies even suggested that within a few years, the hel...

25 July 2008
08:50 GMT

Matter-Anti-Matter Asymmetry Supported by Six-Quark Theory

Most of the universe we live in is made of matter, not anti-matter, but, while to create anti-matter particles is extremely easy here on Earth, they immediately decay through what we call anti-particle annihilation, when an elementary particle and its counterpart interact and decay into pure energy, or particles that...

12 February 2008
04:19 GMT

Why Does Carbon-14 Decay So Slowly?

Amongst some of the commonest isotopes on Earth, such as carbon-11, nitrogen-13 and oxygen-15, we find the notorious carbon-14 isotope. However, while all the previously mentioned isotopes have half-lives ranging from a few tens of minutes to few seconds, carbon-14 decays much slower having a half-life of about 5730 ...

29 January 2008
06:33 GMT

Faint Blue Flashes Solve Cosmic Puzzle

Earth, like many other bodies in space, is constantly being bombarded with streams of highly energetic sub-atomic particles of matter, coming from all directions. But, while some emissions of particles inside the atmosphere can be explained relatively easy, one type of cosmic rays remained, so far, mostly a mystery. ...

4 December 2007
05:59 GMT

Four Interesting Facts About Our Teeth

1. Specialists say that if during an accident you lose a tooth, do not throw it. Your chances of reimplanting the teeth can be of 50 % if you go to the dentist 30 minutes after the 'incident'. Try to stay calm, as much as possible. Hold the tooth by the corona and rinse it gently with warm water. Don't...

20 November 2007
13:41 GMT

New Sub-atomic Particle Discovered

The newly discovered particle is part of the meson class of particles, has a non-zero electric charge, and is composed of four quarks. The announcement of the discovery of the new particle was made by researchers at the High Energy Accelerator Research Organization (KEK) in Tsukuba, Japan, and named the exotic partic...

16 November 2007
02:59 GMT

How Do Radioactive Batteries Work?

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

Chocolate Against Tooth Decay

What do you think about chocolate toothpaste? It's exactly the bitterest chemical found in chocolate, theobromine, which encourages the fight against cavities. This chemical, a molecule similar to caffeine, is also a stimulant. Preliminary tests revealed to a Tulane team that this chemical is more efficient than...

31 May 2007
15:36 GMT

Turning On and Off Nuclear Isomer Decay

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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