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Stories about: polarization |
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Most of you might not know this, but 3-D glasses have actually been around ever since the 1920s, reaching their peak of popularity throughout the 1950s. They are still in use even today, although not as much as they used to be. 3-D glasses rely on a technique known as stereoscopic imaging, in which 2-dimensional imag... |
24 July 2008
09:01 GMT |
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It was long predicted that quasars may in fact be black holes found in the center of large discs of hot matter. However, it was never really proven through observations that this was in fact true. Confirmation now comes from a team of astronomers from the Max Planck Institute for Radio Astronomy in Bonn who used a li... |
24 July 2008
02:45 GMT |
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Aurora Borealis, most commonly known as the Northern Lights, is created when cosmic rays - solar wind in special - interact with the Earth's magnetic field and the atmosphere in order to determine light emissions in the gas atoms located in the upper layers of the atmosphere. In the middle of the 20th century, R... |
26 April 2008
01:48 GMT |
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You can't transfer much information with a photon, we've learned that from our experience with today's existing optic communication devices. If a single photon of light is manipulated in a classical way, then photons are not too different from electrons in the matter of information transfer, except may... |
24 March 2008
06:15 GMT |
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Entangled photons are basically particles of light with interlinked properties, meaning that the properties of one photon depend on those of a second photon. The study of the interactions that take place between entangled properties may eventually reveal the fundamental concepts of quantum physics. The National Insti... |
19 March 2008
07:14 GMT |
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Light emitting diodes are taking over our lives, whether you like it or not. They can be found almost everywhere starting with your average mobile cellular phone, to indoor lighting solution, lasers and even liquid crystal displays and televisions. However, although being extremely energy efficient, small and resilie... |
29 February 2008
06:01 GMT |
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Magnetic avalanches could wipe clean entire hard disk drives, so a new model of this phenomenon helps explain how and why they appear, but most importantly, how to prevent them in order to create new and more reliable memory storage devices.Two magnets pushed together create an avalanche of magnetic activity, used t... |
18 July 2007
05:47 GMT |
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All currently used electronic devices rely on electron charge to function and to transmit information. A new science, called spintronics, tries to switch to using their spin instead of charge, thus potentially continuing the miniaturization process that is rapidly approaching its physical limits with current technol... |
17 July 2007
08:17 GMT |
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Recently, scientists were able to polarize noble gases, (rare gases like Helium, Neon, Argon and Xenon) and to take MRI machine pictures of lungs that had inhaled these gases. A new technique can polarize other elements too, with even greater benefits to medical science. Spin polarization is the degree by which the ... |
17 May 2007
10:44 GMT |
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