High-speed eruptions of charged particles from the sun may be to blame for recent failures of satellites that people rely on to watch TV and use the Internet, scientists say.
From 93 million miles (150 million kilometers) away, the sun spawns solar flares, coronal mass ejections and other space weather events, which can send highly energized particles racing toward Earth. Some solar storms have been known to disrupt communications systems and damage satellites.
To better understand these disturbances, a team of MIT researchers investigated the space weather conditions at the time of 26 failures in eight geostationary satellites operated by the London-based company Inmarsat. Geostationary satellites orbit at the same rate as the Earth’s rotation, meaning they always hover above the same location on the planet.
Most of the glitches, from 1996 to 2012, coincided with high-energy electron activity during declining phases of the solar cycle, the study found.
The researchers think these charged particles may have accumulated in the satellites over time. Despite protective shielding, the buildup likely caused internal charging that damaged the satellites’ amplifiers, which are needed to strengthen and relay a signal back to Earth. Over an extended mission, the researchers warn that this phenomenon could also cause the satellites’ backup amplifiers to fail.
'What is Golden Dawn?' - Andreas Giallourides 2015-04-19 18:52
YouTube description: "We must not be ashamed of what we are.."
Andreas Giallourides is an accredited Parliamentary Assistant in the European Parliament for Popular Association Golden Dawn. Here he refutes the controlled media dogma associated with Golden Dawn, and outlines their founding principles, current activism and future goals. The London Forum is extremely glad to have Andreas speak to us and ...
Galaxy Poll: 86 per cent of Australians want childhood vaccination to be compulsory? 2015-04-17 23:33
Australians want Prime Minister Tony Abbott to make childhood vaccination compulsory and close loopholes that allow vaccine refusers to put all children at risk.
An exclusive national Galaxy poll commissioned by The Sunday Telegraph has revealed overwhelming support to ensure every child is vaccinated.
The highest support for compulsory jabs is in South Australia, where 90 per cent support the call.
The poll ...
Eye in the sky: Local police now using drones to spy on citizens 2015-04-17 22:09
The Harris County Precinct 1 Constable's Office is doing something that no other agency in Harris County is believed to have done yet: Use drones to help fight crime.
It's an eye in the sky for law enforcement, without giving up the element of surprise.
"It could absolutely save lives," says Constable Alan Rosen.
Rosen says the agency's two new $1,200 drones, which ...
New Zealander of the Year: refuse vaccines, lose money 2015-04-17 22:47
Following in the footsteps of Australia, 2014 New Zealander of the Year, Dr. Lance Oâ€™Sullivan, wants to punish people who donâ€™t get vaccinated.
The New Zealand Herald (4/15) reports:
â€śA leading New Zealand doctor has called on the Government to follow Australiaâ€™s example to cut child welfare payments to families who do not vaccinate their children, saying the policy would help protect ...
Iris Scanner Identifies a Person 40 Feet Away 2015-04-17 22:20
Police traffic stops are in the news again, tragically, sparking a new round of discussion on whether and how to outfit police with cameras and other technology.
For several years now, researchers at Carnegie Mellon Universityâ€™s CyLab Biometrics Center have been testing an iris recognition system that can be used to identify subjects at a range of up to 40 feet.