Archive: 06/20/2006

Synchronising the Swarm

Models from theoretical physics, which are normally used to plot the motion of particles, are beginning to shed light upon the mass migration of living organisms as well. These include swarms of locusts, which ...

dateJun 20, 2006 in Mathematics
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'Thirst for knowledge' may be opium craving

Neuroscientists have proposed a simple explanation for the pleasure of grasping a new concept: The brain is getting its fix. The "click" of comprehension triggers a biochemical cascade that rewards the brain ...

dateJun 20, 2006 in
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NTT cash card falls victim to hacking

From taking to prepaid cards from their early years to encouraging people to use mobile phones to purchase everything from train tickets to coffee, Japan has been quick to embrace the concept of a cashless society. Yet that ...

dateJun 20, 2006 in Internet
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Suit against health insurers dismissed

A 7-year legal battle against U.S. health insurers filed by doctors has ended with the dismissal of all remaining claims by a U.S. District Court in Florida.

dateJun 20, 2006 in
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Scientists want polar bear protection

A U.S. climate researcher is leading a team of 30 North American and European scientists in urging the polar bear be listed as a threatened species.

dateJun 20, 2006 in
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Successful Transplantation from Pig Embryos to Mice

Millions of diabetics face a lifetime of daily injections to replace the insulin their bodies fail to produce, as well as a host of risks that includes blindness, amputation, kidney failure, and heart disease. For many, particularly ...

dateJun 20, 2006 in
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Bones Hold the Key to Blood Renewal

Though we think of them as solid and permanent, our bones are actually constantly being rebuilt throughout our lives. A team of scientists at the Weizmann Institute of Science has now revealed how cells that work at remodeling ...

dateJun 20, 2006 in
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Measuring single qubits

“In a quantum system,” explains Alexander Korotkov at the University of California, Riverside, “the result of a measurement can change the system so that it moves in the same direction as the result.” Testing this ...

dateJun 20, 2006 in General Physics feature
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Physicists make an effervescent discovery

Space is fizzing. Above our heads, where the Earth’s magnetic field meets the constant stream of gas from the Sun, thousands of bubbles of superheated gas are constantly growing and popping. Their discovery ...

dateJun 20, 2006 in General Physics
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The New New Math of String Theory

At the beginning of the last century, Albert Einstein posited a now famous theory that forever linked geometry and fundamental physics. According to general relativity, spacetime is curved, and that curvature ...

dateJun 20, 2006 in General Physics
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