More: << previous 50
What is electromagnetically induced transparency? It's a coherent optical nonlinearity which renders a medium transparent over a narrow spectral range within an absorption line. Extreme dispersion is also created within this transparency "window" which leads to "slow light."Now, a team of scientists, made up of... |
7 June 2007
05:55 GMT |
 |
|
What happens when you throw a golf ball at a locomotive speeding toward you? The ball will bounce off it and come flying back at you with tremendous energy, just before you get run over. This is what scientists are trying to study with a new generation of x-ray lasers.Scientists developed a new method of producing i... |
6 June 2007
02:52 GMT |
|
|
It's easy to see on a product pack its nutritional content, but can you know this when it's about meat? And especially the fat content?Now, New Zealand food industry use a breakthrough x-ray based technology to ensure that beef exported to make American beefburgers obeys the US fat content regulations. Thes... |
4 June 2007
03:35 GMT |
|
|
Recent observations made by XMM-Newton reveal a strange formation process in baby star, defying astronomers' expectations. They show how streams of matter fall onto the young stars' magnetic atmospheres and radiate X-rays.So far, the generally accepted process of star formation involved dense parts of mole... |
1 June 2007
03:36 GMT |
|
|
For the first time, astronomers have mapped a mega-structure in the distant universe and showed the cosmic suburbs are full of action. Large galaxy clusters, considered to be the metropolises of the universe, are connected by space filaments that look like highways, to younger, more active galaxies, the cosmic subur... |
30 May 2007
08:42 GMT |
|
|
X-rays have many uses in some very sensitive areas of technology. They are primarily used for diagnostic radiography and crystallography, but also in astronomy, microscopic analysis and fluorescence.Digital color x-rays are an advancement of this technology and it's used in nuclear physics to search for element... |
24 May 2007
05:13 GMT |
|
|
Antiferromagnetism is a different manifestation of magnetism, where the spins of electrons align in a regular pattern with neighboring spins pointing in opposite directions. The antiferromagnetic materials are relatively uncommon and their properties are still not fully understood.Unlike ferromagnets, which have be... |
7 May 2007
09:30 GMT |
|
|
September 11, 2001 - New York, USA; July 7, 2005 - London, UK; September 2, 2004 - Moscow, Russia; March 11, 2004 - Madrid, and the list could go on...The terrorist attacks have made the whole world see the real threat of international terrorism in a different light. Researchers from many countries have concentrated... |
10 April 2007
08:51 GMT |
|
|
The emissions of hot jets and gas from a distant galaxy are yielding an odd interaction between radio and X-ray signals. The galaxy, known as 3C442A, sits about 390 million light-years from Earth towards the constellation Pegasus. Astronomers believe that supermassive black holes at the center of most galaxies (mill... |
10 April 2007
06:06 GMT |
|
|
Electrons have a negative charge and are glued into atoms by the attractive force of its positively charged nucleus. In classical physics, an electron could not escape from an atom unless it received enough energy to overcome this force by ascending the nucleus' "potential barrier".But quantum mechanics allows ... |
5 April 2007
05:41 GMT |
|
|
Since 9.11 there have been a lot of concerns regarding the safety of passengers traveling by airplane, mostly; and because of that, a number of security measurements have been taken in order to provide that level of safety. Among these, we can recall enhanced security terminals, for passengers to go through, which al... |
26 March 2007
04:15 GMT |
|
More: << previous 50 |
Find us on Google+
