October 2009
20 posts
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Quantum gravity theories wiped out by gamma ray...
section5:
What a photon it was: a 31GeV gamma ray picked up by the orbiting Fermi Telescope. Because of the timing of its arrival, an entire class of quantum gravity models suddenly seems unlikely. More data of this sort may be coming soon, as scientists have now confirmed the oldest supernova yet detected, dating from just 630 million years after the big bang.
One of the awkward aspects of...
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Get something scanned under an electron microscope... →
noosphere:
for billy. i hope i’m not too late to stop you from doing something you might regret.
A company called ASPEX, who bill themselves as “a leading producer of benchtop SEM (scanning electron microscopes, is offering readers a chance to send in a sample of anything and see what it looks like in extreme close-up.
To take them up on the offer, download and fill in this form from the...
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Puzzled Physicists Solve Decade-Long Discrepancies →
A team led by physicists at the Science and Technology Facilities Council (STFC) and Brookhaven National Laboratory (BNL) have resolved a decade-long puzzle that is set to have huge implications for use of one of the most versatile classes of materials available to us for future technology applications: copper oxide ceramics.
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Hyperdrive Propulsion Could Be Tested at the Large... →
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Tech pioneers win 2009 Nobel Prize in Physics →
The 2009 Nobel Prize in Physics has been awarded for “two revolutionary optical technologies.”
Charles K. Kao, who discovered how to transmit light through fiber optics, and the team of Willard S. Boyle and George E. Smith, who designed the first digital-imaging sensor, split the Nobel Prize, announced by the Nobel Foundation on Tuesday.
Born in Shanghai, Charles K. Kao made a...
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Name That Atom Smasher
roomthily:
New York Times readers now have the once-in-a-generation chance to help do just that. Partly buoyed by $53 million from the economic stimulus package, aka the American Recovery and Reinvestment Act, the Fermi National Accelerator Laboratory, aka Fermilab, has embarked on a plan to build a new machine for accelerating protons.
For now, it goes by the name of Project X, but Fermilab...
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Numerical Simulation of the Kelvin-Helmholtz...
cloois:
Turbulent mixing of two different density fluids is caused by a velocity difference or shearing at the interface between the two. (See previously: weird clouds)
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Which Subatomic Particle Are You? →
(via roomthily)
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Graphite mimics iron's magnetism →
Researchers of Eindhoven University of Technology and the Radboud University Nijmegen in The Netherlands show for the first time why ordinary graphite is a permanent magnet at room temperature. The results are promising for new applications in nanotechnology, such as sensors and detectors. In particular graphite could be a promising candidate for a biosensor material.
Graphite is a well-known...
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