Physics

Secure communication technology can conquer lack of trust

Many scenarios in business and communication require that two parties share information without either being sure if they can trust the other. Examples include secure auctions and identification at ATM machines. Exploiting the strange properties of the quantum world could be the answer to dealing with such distrust.

Magnetic forces without magnets: Physicist calculates field strengths in the early universe

Magnets have practically become everyday objects. Earlier on, however, the universe consisted only of nonmagnetic elements and particles. Just how the magnetic forces came into existence has now been researched. A theoretical physicist describes a new mechanism for the magnetization of the universe even before the emergence of the first stars.

100. Sun Burn

The sun is at the peak of its activity cycle this year. What will that bring to the skies in 2013?

92. Cosmology Gets the 3-D Treatment

This year astronomers made great progress toward understanding our place in space, gaining a new sense of the three-dimensional structure of the universe around us.
In October a team led by Mathilde Jauzac at the Laboratoire d’Astrophysique de Marseille in France created a 3-D representation of an enormous filament of dark matter, the invisible substance that fills our universe and binds galaxies together. Some 60 million light-years in length, this thread funnels all kinds of matter&mdas

One step closer: Scientists help explain scarcity of anti-matter

A collaboration with major participation by physicists at the University of Wisconsin-Madison has made a precise measurement of elusive, nearly massless particles, and obtained a crucial hint as to why the universe is dominated by matter, not by its close relative, anti-matter.

Liquid crystal research, future applications advance

Contributing geometric and topological analyses of micro-materials, University of Massachusetts Amherst mathematician Robert Kusner aided experimental physicists at the University of Colorado (UC) by successfully explaining the observed "beautiful and complex patterns revealed" in three-dimensional liquid crystal experiments. The work is expected to lead to creation of new materials that can be actively controlled.

45. Highest. Jump. Ever.

Last October more than 8 million people watched on YouTube as Austrian daredevil Felix Baumgartner jumped from a balloon 24 miles above the ground. During a 4 minute 20 second free fall, he became the first person to break the sound barrier without a plane. He also broke the record for highest skydive, set by his mentor, former test pilot Joseph Kittinger. In 1959 and 1960, when the Air Force was testing ejection seat technology in jet fighters, Kittinger made three jumps from the stratosphere t

NASA Encourages Public to Explore Its Curiosity With New Rover-Themed Badge on Foursquare

NASA and the mobile application Foursquare have teamed up to help the public unlock its scientific curiosity with a new rover-themed Curiosity Explorer badge.

NASA Encourages Public to Explore Its Curiosity With New Rover-Themed Badge on Foursquare

NASA and the mobile application Foursquare have teamed up to help the public unlock its scientific curiosity with a new rover-themed Curiosity Explorer badge.

Measurements hint why the universe is dominated by matter, not anti-matter

Physicists have made a precise measurement of elusive, nearly massless particles, and obtained a crucial hint as to why the universe is dominated by matter, not by its close relative, anti-matter.

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