Physics

New research embraces laser and sparks cool affair

Bulky and noisy air-conditioning compressors and refrigerators may soon be a thing of the past. With the latest discovery by scientists from Nanyang Technological University (NTU), current cooling systems which uses refrigerant harmful to the ozone layer could be replaced by a revolutionary cooling system using lasers.

Mechanism behind wear at atomic scale

As surfaces rub against one another, they break down and lose their original shape. With less material to start with and functionality that often depends critically on shape and surface structure, wear affects nanoscale objects more strongly than it does their macroscale counterparts. Now, researchers have experimentally demonstrated one of the mechanisms behind wear at the smallest scale: the transfer of material, atom by atom, from one surface to another.

Revolutionary cooling system uses lasers

Bulky and noisy air-conditioning compressors and refrigerators may soon be a thing of the past. Current cooling systems which uses refrigerant harmful to the ozone layer could be replaced by a revolutionary cooling system using lasers.

Generating, sustaining electrical currents with unique properties for information processing closer to reality

Spintronics is a form of signal processing similar to that used in traditional electronics, but it takes advantage of a property of electrons known as spin. Spin is often visualized as an arrow about which the electron rotates, much like a top spinning around its axis. Generating a stream of electrons in which these 'arrows' are all parallel—a so-called spin-polarized current (see image)—is the foundation upon which spintronics is based. Imperfections in a material, however, can easily destroy polarization.

NSAC to recommend closing BNL Relativistic Heavy Ion Collider facility

(Phys.org)—A panel of experts on the Nuclear Science Advisory Committee (NSAC) has decided to recommend closing the Relativistic Heavy Ion Collider (RHIC) in New York. The move comes after budget cuts for physics research via the Department of Energy, (DOE) in the United States, has led to making hard decisions regarding which facilities to continue to fund, and which to cut. As of 2007, the DOE was responsible for funding three major nuclear research facilities with a budget standing at $547 million.

85. Glowing Trails on the Edge of Space

Measuring high-altitude winds with suborbital rockets

NASA Launches Next-Generation Communications Satellite

The first of NASA’s three next-generation Tracking and Data Relay Satellites (TDRS), known as TDRS-K, launched at 8:48 p.m. EST Wednesday from Cape Canaveral Air Force Station in Florida.

NASA Increases Value of Bioastronautics Contract

NASA has increased the value of a contract with Wyle Integrated Science and Engineering Group of Houston to provide continuing support to the Human Health and Performance Directorate at NASA's Johnson Space Center in Houston.

Herschel Finds Star Possibly Making Planets Past Its Prime

A star thought to have passed the age at which it can form planets may in fact be creating new worlds. The disk of material surrounding the surprising star called TW Hydrae may be massive enough to make even more planets than we have in our own solar system.

NASA Rocket Test Will Streak Red Over East Coast Tonight

If you live along the Eastern seaboard, keep an eye on the sky tonight. NASA will be launching a rocket sometime between 5:30 and 6:50 p.m. EST from its flight facility in Wallops Island, Virginia.
The rocket is a practice run for two upcoming space observation missions. It will be loaded with two different kinds of lithium canisters. Once ignited, the lithium will vaporize and produce two cloud-like trails that will appear red in the sky. Since they are higher in the atmosphere they will be

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