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jessyjemy

What happens to your brain on the way to Mars - 1 views

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    This study from NASA shows that cosmic rays have a deleterious effect on the brain, more than expected, resulting in in symptoms similar to dementia (memory loss, decline in problem solving skills, general cognitive functions).

    A reason more to investigate into hibernation?
jcunha

Maze-solving automatons can repair broken circuits - 1 views

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    Researchers in Bangalore, India together with the Indian Space Research organization come up with an intelligent self-healing algorithm that can locate open-circuits faults and repair them in real-time. They used an insulating silicon oil containing conductive particles. Whenever a fault happens, an electric field develops there, causing the fluid to move in a 'thermodynamic automaton' way repairing the fault. The researchers make clear it could be one advantage for electronics in harsh environments, such as in space satellites.
jcunha

Wireless 10 kW power transmission - 1 views

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    Mitsubishi Heavy Industries said Friday that it has succeeded in transmitting 10 kW of power through 500 m. An announcement that comes just after JAXA scientists reported one more breakthrough in the quest for Space Solar Power Systems (http://phys.org/news/2015-03-japan-space-scientists-wireless-energy.html). One step closer to Power Generation from Space/
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    from the press release (https://www.mhi-global.com/news/story/1503121879.html) "10 kilowatts (kW) of power was sent from a transmitting unit by microwave. The reception of power was confirmed at a receiver unit located at a distance of 500 meters (m) away by the illumination of LED lights, using part of power transmitted".

    So 10kW of transmission to light a few efficient LED lights???

    In a 2011 report (https://www.mhi-global.com/company/technology/review/pdf/e484/e484017.pdf), MHI estimated this would generate the same electricity output as a 400-megawatt thermal plant - or enough to serve more than 150,000 homes during peak hours. The price? The same as publicly supplied power, according to its calculations.

    There are no results to boost these claims however. The main work they do now is focused on beam steering control. I guess the real application in mind is more targeted to terrestrial applications, eg wireless highway charging (http://www.bbc.com/future/story/20120312-wireless-highway-to-charge-cars). With the distances so much shorter, leading to much smaller antenna's and rectenna's this makes much more sense to me to develop.
annaheffernan

Lost Beagle 2 spacecraft found intact on Martian surface - 0 views

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    The UK-led Beagle 2 Mars lander, thought lost on the red planet since 2003, has been found partially deployed on the Martian surface. New images show that it successfully touched down on the planet's surface in 2003 but failed to deploy all four of its solar panels, thereby allowing no communication with scientists on Earth.
Thijs Versloot

Spotting East African Mammals in Open Savannah from Space - 1 views

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    A hybrid image classification method was employed for this specific purpose by incorporating the advantages of both pixel-based and object-based image classification approaches. This was performed in two steps: firstly, a pixel-based image classification method, i.e., artificial neural network was applied to classify potential targets with similar spectral reflectance at pixel level; and then an object-based image classification method was used to further differentiate animal targets from the surrounding landscapes through the applications of expert knowledge. As a result, the large animals in two pilot study areas were successfully detected with an average count error of 8.2%, omission error of 6.6% and commission error of 13.7%. The results of the study show for the first time that it is feasible to perform automated detection and counting of large wild animals in open savannahs from space
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    And Paul, it includes neural networks!
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    I kept telling you guys but you just laughed and laughed :))
annaheffernan

New apps allow smartphone users to join the hunt for ultrahigh-energy cosmic rays - 0 views

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    Two apps - the Distributed Electronic Cosmic-ray Observatory (DECO) and Cosmic Rays Found in Smartphones (CRAYFIS) - transform smartphones into miniature cosmic-ray detectors. They use the CMOS chips inside phones' onboard cameras to detect the secondary particles produced when cosmic rays - energetic, charged subatomic particles arriving from beyond the solar system - collide with air molecules in the Earth's atmosphere
jcunha

Cloud cities for Venus exploration - 3 views

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    Our friends from NASA have come out with a plan to the human exploration of Venus in the time that everyone is speaking about Mars.
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    Love the concept acronym, which pretty much says it all... Not sure which astronaut would fancy floating around in an atmosphere where clouds are made of sulphuric acid.
    Besides I don't see the point of a manned mission if one can't reach the surface.. tele-operation would be easy and so much cheaper.
annaheffernan

Physicsworld top 10 breakthroughs of the year - at the top Rosetta - 3 views

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    Physicsworld releases their top 10 breakthroughs of the year 2014, ESA's Rosetta mission tops the list with the achievement of landing on a comet.
Tom Gheysens

Direct brain-to-brain communication demonstrated in human subjects -- ScienceDaily - 2 views

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    In a first-of-its-kind study, an international team of neuroscientists and robotics engineers has demonstrated the viability of direct brain-to-brain communication in humans.
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    Was just about to post it... :) It seems after transferring the EEG signals of one person, converting it to bits and stimulating some brain activity using magnetic stimulation (TMS) the receiving person actually sees 'flashes of light' in their peripheral vision. So its using your vision sense to get the information across. Would it not be better to try to see if you can generate some kind of signal in the part of your brain that is connected to 'hearing'? Or would this be me thinking too naive?
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    "transferring the EEG signals of one person, converting it to bits and stimulating some brain activity using magnetic stimulation (TMS)"

    How is this "direct"?
Nicholas Lan

UK promises commercial spaceport 'by 2018' with 6 of 8 potential locations in Scotland - 0 views

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    not sure what to make of this. seems like an odd change of direction

    "Spaceports will be key to us opening up the final frontier of commercial space travel," said Chief Secretary to the Treasury Danny Alexander at the announcement of the new sites. Mr Alexander hinted that the plans could lead to Scotland becoming the home of the UK's commercial space ambitions, even as the Scottish government warns that only independence will secure a successful space industry for the country.
johannessimon81

Aerospace Industry Trends & Events - 1 views

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    Hey guys,
    I thought I would forward you a link to a newsletter on Aerospace Tech. It is mainly on the engineering level - but after all that was an area where a lot of people in the team felt they missed expertise. So here you go! ;-)
    The newsletter is a mix of stories on new trends and of advertisement of high-tech parts by aerospace suppliers. IHS Global Spec also has similar newsletters on other research fields (e.g. piezoelectrics). Hope this is useful for some people.
Thijs Versloot

Google plans for internet from space with 180 LEO satellites - 2 views

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    The Wall Street Journal hears that the search firm is preparing to build 180 "small, high capacity" satellites that will go into low orbit and provide internet connections to underserved areas
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    sorry, did not see your earlier post ...
    fully altruistic move of course as they claim
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    actually I posted about it first :P
johannessimon81

Norwegian army driving tank using Oculus Rift - 1 views

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    I guess it might also make sense to put a camera on an extension to look around corners without having to advance the vehicle to where it can be shot at...
    ?: Could the Oculus be used to let humans control humanoid robots? I guess so. Could humans perform experiments using such robots? Probably. Could Oculus be used to control these robots on the ISS? I guess so. --> Finally we eliminated the last need for humans in space!!! :-D
    (Maybe we could replace humans on Earth with robots that control one another through Oculus Rift...)
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    Even cooler would be to have like a swarm of drones around the tank to act as a sensor array and look around corners for you.
Ma Ru

F9R First Flight Test - 3 views

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    In case you have not seen this one yet...
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    Nice one, very impressive (also filming it with a drone :)! I noticed at 0:56 that the exhaust flames do travel upwards on the descent. I wonder how much of a problem this would be for the actual reusability / next flight approval?
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    impressive!
johannessimon81

Through a glass, darkly: Chinese, American, and Russian anti-satellite testing in space - 2 views

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    Article mainly on anti-satellite testing by the Chinese and on US and Russian tests (2nd page) - quite extensive and technical but interesting
johannessimon81

Iridium to introduce WiFi hotspots for global satelite internet - 2 views

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    In remote / under-developed regions this might actually be a strong alternative for building internet connectivity - somewhat like the exploding market for cell phones in Africa due to the lack of land lines.
Thijs Versloot

Light-weight membrane optics test for building large telescopes in space #DARPA - 1 views

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    Using light-weight membranes to build telescopes in space it may be possible to one day image the whole planet completely at high resolution, hence also the interest of darpa.
johannessimon81

Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector - 1 views

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    IceCube detects a neutrino in about every 6 minutes but most are from within the solar system. A small number of very high energy neutrinos have been found though which have energies that cannot be produced by the sun or on Earth.
Thijs Versloot

Final design phase for worlds largest radio telescope #SKA - 0 views

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    One of the feats: "The SKA will be so sensitive that it will be able to detect an airport radar on a planet tens of light years away"
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