(Phys.org) —The Sun glows with a surface temperature of about 5500 degrees Celsius. Meanwhile its hot outer layer (the corona) has a temperature of over a million degrees, and ejects a wind of charged particles at a rate ...
Space Exploration
Apr 3, 2013
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Particle physicists routinely and incrementally test the boundaries of what is possible in physics research. Occasionally however, they achieve a breakthrough that reveals an entirely new, uncharted field of study. Researchers ...
General Physics
Mar 1, 2013
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Magnetism and electricity are two of the fundamental forces of nature. Combining them in a single multiferroic material in which one controls the other is not only of basic interest, but also relevant for practical applications. ...
Condensed Matter
Feb 22, 2013
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Electric rocket engines known as Hall thrusters, which use a super high-velocity stream of ions to propel a spacecraft in space, have been used successfully onboard many missions for half a century. Erosion of the discharge ...
General Physics
Feb 13, 2013
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(Phys.org)—A team of chemists and biologists led by Indiana University chemistry professor David Giedroc has described a previously unknown function of a protein they now know is responsible for protecting a major bacterial ...
Biochemistry
Jan 29, 2013
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Magnetism in semiconductors arises mainly through the interaction of magnetic ions and electrons. Normally, the more electrons contribute to the magnetism, the stronger the magnet. However, researchers at the RIKEN Advanced ...
General Physics
Jan 18, 2013
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Graphene and related materials hold promise for the future of electrochemical sensors—detectors that measure the concentration of oxygen, toxic gases, and other substances—but many applications require greater sensitivity ...
Nanophysics
Jan 17, 2013
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Transition metal oxides are known for their interesting properties, including high-temperature superconductivity and resistance that can be tuned with a magnetic field. Researchers have mainly focused on oxides made from ...
General Physics
Dec 7, 2012
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(Phys.org)—World records have been broken this year not only in sports by Olympic athletes in London, but also in high temperature superconducting magnet technology by the Superconducting Magnet Division (SMD) staff at ...
General Physics
Oct 9, 2012
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(Phys.org)—Imagine a clock that will keep perfect time forever, even after the heat-death of the universe. This is the "wow" factor behind a device known as a "space-time crystal," a four-dimensional crystal that has periodic ...
General Physics
Sep 24, 2012
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