Black Hole Merger Movie

March 31, 2006

Accurate calculations of the gravitational waveforms emitted during the collision of black holes can now be made. A new computer study of how a pair of black holes, circling each other, disturbs the surrounding space and sends huge gusts of gravitational waves outwards, should greatly benefit the experimental search for those waves with detectors such as the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the planned Laser Interferometer Space Antenna (LISA).

Site – http://www.aip.org

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New String-Theory Notion Redefines the Big Bang

March 31, 2006

String theory — the concept that all particles can be represented as strings or string-loops of incredibly minute length, oscillating at various frequencies — was initially developed to help explain why quarks, the tiny fundamental particles that make up protons and neutrons, are always confined within larger composite particles. However, string theory has evolved to allow scientists to deal with some wider issues. For example, they can use string theory to devise explanations for some grand problems in cosmology, such as the state of the universe — its shape, size, etc. — just after the Big Bang, when quarks roamed freely.

Site – http://www.physorg.com


Your secrets are safe with quasar encryption

March 31, 2006

Japanese scientists have come up with a method for encrypting messages using radio waves from quasars. The researchers believe quasars could make an ideal cryptographic tool because the strength and frequency of the radio pulses they emit is impossible to predict. Each communicating party would only need to know which quasar to monitor and when to start in order to encrypt and decrypt a message.

Site – http://www.newscientist.com


IBM develops method to control atom-scale magnetism

March 31, 2006

IBM scientists have developed a new technique called spin-excitation spectroscopy to explore and control magnetism at its fundamental atomic level. The method promises to be important in designing future computer circuits and data-storage elements as they shrink toward atomic dimensions and in laying the foundation for new materials and computing devices that leverage atom-scale magnetic phenomena, such as quantum computers. Spin-excitation spectroscopy uses IBM’s low-temperature scanning tunneling microscope designed for use with magnetic fields up to 140,000 times stronger than the earth’s. The researchers first move atoms into position and then measure the interactions between their atomic spins, which are the fundamental sources of magnetism.

Site – http://www.eetimes.com


Video: Lifelike Robot Waves Away Skeptics

March 31, 2006

Photos of Repliee Q1—an eerily lifelike robot that debuted in Japan last year—might not have impressed you. But video of the android could just change your mind. Watch as the next robo-prototype, Repliee Q2, interacts with visitors, tells off assailants, and waves for the camera.

Site – http://news.nationalgeographic.com


Galaxy simulation breaks new ground

March 31, 2006

Two astronomers have performed one of the world’s largest astrophysics simulations to date in order to model the growth of galaxies. Using the “Earth Simulator” supercomputer in Japan, which is also used for climate modelling and simulating seismic activity, Masao Mori of the University of California at Los Angeles and Masayuki Umemura at the University of Tsukuba have calculated how galaxies evolved from just 300 million years after the Big bang to the present day. The results show that galaxies may have evolved much faster than currently believed.

Site – http://physicsweb.org


Steve Lawler

March 28, 2006

lawler

Steve Lawler is a definitive DJ and producer; a tastemaker whose sets combine quality house music with the power to move dance floors around the world. In the last few years, he's wowed crowds in such far flung places as Zouk in Singapore, Groovejet in Miami, Twilo in New York and the mighty Space in Ibiza. Courtesy of home, he provided the most groundbreaking sets of the season for many of those lucky enough to hear him. After two months he had been crowned 'King Of Space' by the locals – a rare and well deserved honour.

Site – http://www.djstevelawler.com