The Pleasure of Finding Things Out, Author: Richard P. Feynman.
By Paul McNamara – “I think someone who can make science interesting is magical, and the person who did that better than anybody was Richard Feynman,” says Bill Gates in his 2009 introduction of the Microsoft-hosted Tuva Project, a collection of Feynman’s famous Messenger Lectures at Cornell University in 1964. (Feynman’s introduction by Cornell Provost Dale Corson is worth the time alone.) The lectures can be found on YouTube, as well. more> http://tinyurl.com/afr2xra
By Jim Heintz – A meteor that scientists estimate weighed 10 tons (11 tons) streaked at supersonic speed over Russia’s Ural Mountains on Friday, setting off blasts that injured some 500 people and frightened countless more.
The Russian Academy of Sciences said in a statement that the meteor over the Chelyabinsk region entered the Earth’s atmosphere at a speed of at least 54,000 kph (33,000 mph) and shattered about 30-50 km (18-32 miles) above ground. more> http://tinyurl.com/anfphhg
R&D Magazine – The quantum nanophysics team around Markus Arndt of the University of Vienna has now established a novel way of manipulating massive particles: The researchers use nanosecond long flashes of laser light to create gratings, three of which form a closed-path interferometer. This scheme allows creating quantum mechanical superposition states, which we do not observe in our macroscopic environment. When precisely synchronized, the fleeting light structures form a device freed from many constraints that limited the measurement precision in earlier machines.
“Interferometry in the time-domain with pulsed light gratings will become a central element of quantum experiments with nanoparticles,” states Philipp Haslinger who is the first author of the paper. more> http://tinyurl.com/cqupn9u
R&D Magazine – In the current issue of Nature Photonics, a research team of Innsbruck physicists led by Rainer Blatt and Tracy Northup report how they have directly transferred the quantum information stored in an atom onto a particle of light. Such information could then be sent over optical fiber to a distant atom.
“Currently, we can carry out successful quantum computations with atoms,” explain Andreas Stute and Bernardo Casabone, both PhD students at the University of Innsbruck’s Institute for Experimental Physics. “But we are still missing viable interfaces with which quantum information can be transferred over optical channels from one computer to another.” more> http://tinyurl.com/aatpmya
Posted in Nature, Net, Science, Technology
Tagged Experimental physics, Internet, Nature Photonics, Optical fiber, Physics, Quantum information, Rainer Blatt, University of Innsbruck