News tagged with radio
Pasta-shaped radio waves beamed across Venice
A group of Italian and Swedish researchers appears to have solved the problem of radio congestion by cleverly twisting radio waves into the shape of fusilli pasta, allowing a potentially infinite number of channels to be ...
Mar 02, 2012 |
4.8 / 5 (36) |
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Soviet find of water on the Moon in the 1970s ignored by the West
(Phys.org) -- In August 1976 Luna 24 landed on the moon and returned to Earth with samples of rocks, which were found to contain water, but this finding was ignored by scientists in the West.
Space & Earth / Space Exploration
Jun 01, 2012 |
4.7 / 5 (34) |
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A planet made of diamond (w/ video)
A once-massive star that's been transformed into a small planet made of diamond: that is what University of Manchester astronomers think they've found in the Milky Way.
Aug 25, 2011 |
4.9 / 5 (32) |
33
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IBM creates first graphene based integrated circuit
(PhysOrg.com) -- Taking a giant step forward in the creation and production of graphene based integrated circuits, IBM has announced in Science, the fabrication of a graphene based integrated circuit on a s ...
Jun 10, 2011 |
4.8 / 5 (32) |
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Radio telescopes capture best-ever snapshot of black hole jets (w/ video)
(PhysOrg.com) -- An international team, including NASA-funded researchers, using radio telescopes located throughout the Southern Hemisphere has produced the most detailed image of particle jets erupting from ...
May 21, 2011 |
4.9 / 5 (28) |
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US astronomers launch search for alien life on 86 planets
A massive radio telescope in rural West Virginia has begun listening for signs of alien life on 86 possible Earth-like planets, US astronomers said Friday.
May 14, 2011 |
4.7 / 5 (29) |
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City lights could reveal E.T. civilization
In the search for extraterrestrial intelligence, astronomers have hunted for radio signals and ultra-short laser pulses. In a new paper, Avi Loeb (Harvard-Smithsonian Center for Astrophysics) and Edwin Turner ...
Nov 03, 2011 |
4.6 / 5 (29) |
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Researchers track the secret lives of feral and free-roaming house cats
Researchers (and some cat-owners) wanted to know: What do feral and free-roaming house cats do when they're out of sight? A two-year study offers a first look at the daily lives of these feline paupers and ...
May 26, 2011 |
4 / 5 (28) |
10
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The birth of a telescope 30 times larger than Earth
(PhysOrg.com) -- On 15 November 2011, the Effelsberg 100-meter radio telescope, together with three Russian and one Ukrainian telescope, took part in the first interferometric observations with the orbiting ...
Dec 08, 2011 |
5 / 5 (21) |
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A new, distant arm of the Milky Way galaxy
(PhysOrg.com) -- Our Milky Way galaxy, like other spiral galaxies, has a disk with sweeping arms of stars, gas, and dust that curve around the galaxy like the arms of a huge pinwheel.
Jun 13, 2011 |
4.8 / 5 (21) |
1
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Group sets plans for largest radio telescope ever
(PhysOrg.com) -- Proving that a lot of little things can go a long way, a group of astronomers have revealed plans to build and install a radio telescope array out of thousands of small inexpensive dishes, ...
Apr 01, 2011 |
4.8 / 5 (20) |
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A black hole unmasked
Black holes are among the most amazing and bizarre predictions of Einstein's theory of gravity. A black hole is thought to be point-like in dimension, but it is surrounded by an imaginary surface, or "edge," ...
Nov 29, 2011 |
4.7 / 5 (19) |
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Photonic neuron may compute a billion times faster than brain circuits
(PhysOrg.com) -- The name of the project -- "photonic neuron" -- was catchy enough, but what really caught Mitchell Nahmias' attention was the opportunity to combine his interests in engineering and neuroscience.
Jul 19, 2011 |
4.8 / 5 (17) |
9
Smart skin: Electronics that stick and stretch like a temporary tattoo (w/ video)
Engineers have developed a device platform that combines electronic components for sensing, medical diagnostics, communications and human-machine interfaces, all on an ultrathin skin-like patch that mounts ...
Aug 11, 2011 |
4.8 / 5 (17) |
22
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An alien code close to home: Seeking ET beyond the radio silence
Any intelligent extraterrestrial life that exists probably won't announce itself by blowing up the White House, or win over the hearts of children as a lovable alien with a glowing finger. Many scientists ...
Space & Earth / Space Exploration
Oct 28, 2011 |
4.1 / 5 (19) |
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Radio
Radio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information is carried by systematically changing (modulating) some property of the radiated waves, such as amplitude, frequency, or phase. When radio waves pass an electrical conductor, the oscillating fields induce an alternating current in the conductor. This can be detected and transformed into sound or other signals that carry information.
For more information about Radio, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
