News tagged with radio waves
Simulations Illuminate Universe's First Twin Stars (w/ Video)
Jul 09, 2009 |
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(PhysOrg.com) -- The earliest stars in the universe formed not only as individuals, but sometimes also as twins, according to a paper published today in Science Express. By creating robust simulations of the ...
Astronomers reveal a 'blue whale of space'
Jul 07, 2009 |
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CSIRO astronomers have revealed the hidden face of an enormous galaxy called Centaurus A, which emits a radio glow covering an area 200 times bigger than the full Moon.
Hurricane Katrina: Phone home
Space & Earth / Earth Sciences
Jul 06, 2009 |
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Though New Orleans residents were told to evacuate days before the arrival of Hurricane Katrina, no one could have predicted the real extent of the devastation.
New technique improves estimates of pulsar ages
Jun 09, 2009 |
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Astronomers at the University of California, Santa Cruz, have developed a new technique to determine the ages of millisecond pulsars, the fastest-spinning stars in the universe.
Study: Radio waves erase pre-cancer cells in esophagus
May 28, 2009 |
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Heat generated by radio waves erases most pre-cancerous cells associated with chronic acid reflux, providing an alternative to surgery or the current wait-and-see approach.
The cosmos is green: Researchers catch nature in the act of 'recycling' a star (w/Animations)
May 21, 2009 |
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(PhysOrg.com) -- For the first time, researchers have observed a singular cosmic act of rebirth: the transformation of an ordinary, slow-rotating pulsar into a superfast millisecond pulsar with an almost infinitely ...
THEMIS: 'Singing' electrons help create and destroy 'killer' electrons
May 07, 2009 |
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Scientists using NASA's fleet of THEMIS spacecraft have discovered how radio waves produced by electrons injected into Earth's near-space environment both generate and remove high-speed "killer" electrons.
New MRI signaling method could picture disease metabolism in action
Chemistry / Analytical Chemistry
Mar 26, 2009 |
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Duke University chemists are using modified magnetic resonance imaging to see molecular changes inside people's bodies that could signal health problems such as cancer.
Single-Molecule Magnets Open New Door for Information Technology
Mar 09, 2009 |
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(PhysOrg.com) -- Recent research by scientists in Italy and France shows that that single molecules have the ability to store information via their magnetic state. Their work is a first step toward a new generation ...
Signal opportunities on the slopes -- with RFID
Mar 03, 2009 |
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(PhysOrg.com) -- Whether slalom or alpine skiing, competitive skiing is all about thousandths of a second. Hence, professional athletes must constantly refine their technique. Small radio transmitters will ...
Random Antenna Arrays Boost Emergency Communications
Feb 25, 2009 |
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(PhysOrg.com) -- First responders could boost their radio communications quickly at a disaster site by setting out just four extra transmitters in a random arrangement to significantly increase the signal power at the receiver, ...
Physicist Uses Radio Signals to Search Downtown Las Vegas for Signs of Ancient Pit Houses
Feb 16, 2009 |
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(PhysOrg.com) -- Using radio signals instead of shovels, a physics faculty member from Ithaca College, along with local archeologists, has found evidence of additional 1,300-year-old pit houses five miles from the Las Vegas ...
How do you solve a problem like MARIA?
Feb 11, 2009 |
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A chance conversation between Alan Preece, Professor of Medical Physics in the Bristol Oncology Centre, and Dr Ian Craddock from the Department of Electrical and Electronic Engineering has led to the development ...
Astronomers hit a telescopic jackpot
Jan 12, 2009 |
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Astronomers this year are about to get a windfall of new and improved telescopes of unprecedented power with which to explore the universe. The bonanza arrives 400 years after Galileo spied craters on the moon through the ...
NASA Balloon Mission Tunes in to a Cosmic Radio Mystery
Space & Earth / Space Exploration
Jan 07, 2009 |
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(PhysOrg.com) -- Listening to the early universe just got harder. A team led by Alan Kogut of NASA's Goddard Space Flight Center in Greenbelt, Md., today announced the discovery of cosmic radio noise that ...
