(Phys.org) —In today's wireless communication systems, the wireless signals are non-chaotic, meaning they have a well-defined period and frequency. Non-chaotic wireless signals are used in many applications, such as satellite ...
Physicists at UC San Diego have developed a new way to control the transport of electrical currents through high-temperature superconductors—materials discovered nearly 30 years ago that lose all resistance to electricity ...
Superconductivity
Jun 22, 2015
0
1426
(Phys.org) —A team of researchers working at the University of Padua in Italy has bounced polarized photons off of four in-flight satellites to show that quantum communications between such satellites and ground based stations ...
(Phys.org) —A team of researchers studying comet Lovejoy has discovered that as the ball of ice passed through the sun's corona in December 2011, its tail wiggled in a way that allowed them to better understand coronal ...
(Phys.org) -- The first images of an upward surge of the Sun's gases into quiescent coronal loops have been identified by an international team of scientists. The discovery is one more step towards understanding the origins ...
Astronomy
Jul 1, 2012
3
0
(PhysOrg.com) -- Hackers at the Chaos Communication Congress in Berlin, which wrapped up over the weekend, are toasting the New Year with a newly announced plan for a hacker-owned satellite communications network. The anti-censorship ...
George Mason University scientists discovered recently that a phenomenon called a giant magnetic rope is the cause of solar storms. Confirming the existence of this formation is a key first step in helping to mitigate the ...
Space Exploration
Jun 15, 2011
23
0
(PhysOrg.com) -- Cheaper, lighter and more energy-efficient broadband devices on communications satellites may be possible using metamaterials to modify horn antennas, according to engineers from Penn State and Lockheed Martin ...
Engineering
Jan 31, 2011
4
0
(AP) -- A TV communications satellite is drifting out of control thousands of miles above the Earth, threatening to wander into another satellite's orbit and interfere with cable programming across the United States, the ...
Telecom
May 11, 2010
1
0
(AP) -- The vast, thinly populated expanses of the country that still lack cell phone coverage could be getting an interesting option next year: ordinary-looking cell phones that connect to a satellite when there's no cell ...
Telecom
Apr 9, 2009
0
0
