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The Weirdest Type Ia Supernova Yet PDF Print E-mail
Written by xScience.Info   
Wednesday, 20 September 2006
Weirdest Type Ia SupernovaA group of scientists affiliated with the SuperNova Legacy Survey (SNLS) have found startling evidence that there is more than one kind of Type Ia supernova, a class of exploding stars which until now has been regarded as essentially uniform in all important respects. Supernova SNLS-03D3bb is more than twice as bright as most Type Ia supernovae but has much less kinetic energy, and appears to be half again as massive as a typical Type Ia.
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Paramecia Adapt Their Swimming to Changing Gravitational Force PDF Print E-mail
Written by xScience.Info   
Monday, 18 September 2006
ParameciaUsing a high-powered electromagnet, Brown University physicists Karine Guevorkian and James Valles have created a topsy-turvy world for the single-celled paramecium. They have managed to increase, eliminate and even reverse the effects of gravity on the tiny protozoan, changing its swimming behavior and indirectly measuring its swimming force.
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General Relativity Survives Gruelling Pulsar Test PDF Print E-mail
Written by xScience.Info   
Sunday, 17 September 2006
ImageAstronomers have used a pair of pulsars orbiting each other, found with CSIRO’s Parkes telescope in 2003, to show that Einstein’s theory of general relativity is correct to within 0.05% – the most stringent limit to date. They also hope to be able to use the two pulsars to determine the exact nature of the matter that pulsars and other neutron stars are made of.
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PASER: Particle Acceleration by Stimulated Emission of Radiation PDF Print E-mail
Written by xScience.Info   
Thursday, 14 September 2006
Image Particle Acceleration by Stimulated Emission of Radiation (PASER for Short), a sort of particle analog of the laser process, has been demonstrated, for the first time, by a team of physicists from the Technion-Israel Institute of Technology using the accelerator facilities at the Brookhaven National Lab.
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