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LeopoldS

Scientists test novel power system for space travel (w/ video) - 1 views

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    Less impressive than the headline, since they actually just tested their conversion system at suboptimal conditions on an existing reactor setup, but still since done within six month and with less than 1M€ ...
johannessimon81

Fission reactor + stirling engine tested by NASA - 1 views

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    NASA has tested a prototype of a new design for a small uranium reactor as a power source for deep space exploration. In principle this should pose a smaller radiation danger during launch and more energy per mass compared to RTGs.
Dario Izzo

Quantum teleportation between remote atomic-ensemble quantum memories - 1 views

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    1mm atomic bundle teleported !!!!
santecarloni

Virtual phonons get real - physicsworld.com - 0 views

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    An acoustic analogue of the dynamical Casimir effect (DCE) has been demonstrated for the first time.
santecarloni

Light bends itself round corners - physicsworld.com - 1 views

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    The Florida team generated a specially shaped laser beam that could self-accelerate, or bend, sideways.
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    very nice!!! read this e.g. "In addition to this self-bending, the beam's intensity pattern also has a couple of other intriguing characteristics. One is that it is non-diffracting, which means that the width of each intensity region does not appreciably increase as the beam travels forwards. This is unlike a normal beam - even a tightly collimated laser beam - which spreads as it propagates. The other unusual property is that of self-healing. This means that if part of the beam is blocked by opaque objects, then any disruptions to the beam's intensity pattern could gradually recover as the beam travels forward."
santecarloni

Semiconductor funnel could boost solar cells - physicsworld.com - 1 views

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    Computer simulations by researchers in the US and China could lead to solar cells that work efficiently across a broad range of the solar spectrum.
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    doubt that this would work ...
LeopoldS

Evidence for Water Ice Near Mercury's North Pole from MESSENGER Neutron Spectrometer Me... - 1 views

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    Water ice on mercury!!!
Marcus Maertens

Giant black hole could upset galaxy evolution models - 0 views

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    Its a big one!
johannessimon81

Frozen Water and Organic Material Discovered on Mercury - 1 views

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    Sorry, did not see your entry when posting mine ...
Juxi Leitner

U.S. Spies See Superhumans, Instant Cities by 2030 | Danger Room | Wired.com - 1 views

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    how the us intelligence community forecasts tech development into 2030
johannessimon81

Elon Musk about cost of space flight and going to Mars (privately) - 2 views

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    interesting stuff ... I like this quote "When a man tells you about the time he planned to put a vegetable garden on Mars, you worry about his mental state. But if that same man has since launched multiple rockets that are actually capable of reaching Mars-sending them into orbit, Bond-style, from a tiny island in the Pacific-you need to find another diagnosis. That's the thing about extreme entrepreneurialism: There's a fine line between madness and genius, and you need a little bit of both to really change the world. All entrepreneurs have an aptitude for risk, but more important than that is their capacity for self-delusion. Indeed, psychological investigations have found that entrepreneurs aren't more risk-tolerant than non-entrepreneurs. They just have an extraordinary ability to believe in their own visions, so much so that they think what they're embarking on isn't really that risky. They're wrong, of course, but without the ability to be so wrong-to willfully ignore all those naysayers and all that evidence to the contrary-no one would possess the necessary audacity to start something radically new."
johannessimon81

Peel-and-Stick: Fabricating Thin Film Solar Cell on Universal Substrates - 3 views

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    any clue how? "With the peel-and-stick process, we integrated hydrogenated amorphous silicon (a-Si:H) TFSCs on paper, plastics, cell phone and building windows while maintaining the original 7.5% efficiency. The new peel-and-stick process enables further reduction of the cost and weight for TFSCs and endows TFSCs with flexibility and attachability for broader application areas. We believe that the peel-and-stick process can be applied to thin film electronics as well"
Marcus Maertens

Pouring Milk All Over Yourself: The Next Extremely Bizarre Trend? - 1 views

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    So... who is in?
  • ...1 more comment...
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    I thought you were supposed to do this with petrol... |:-[ It's by the way cool to see how the milk seems to flow very differently from what one might expect from water: it seems to flow in a few thick streams instead of wetting the whole person... Since the surface tension of milk seems to be lower than that of water (http://journals.cambridge.org/action/displayAbstract;jsessionid=908B02C3825E97162B9D60DA615EAC96.journals?fromPage=online&aid=5146540) this is surprising. It might very well be an effect of the colloidal nature of milk as it is water in which semi-solid fat particles are suspended. So like the cornstarch mix that we have seen in the office there might be some dynamic jamming going on leading to a higher viscosity (at high shear rates). After all they might be doing science...
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    nice comment Johannes ... if you add a bit of Kleopatre, e.g. why bathing in milk helped her fool Marcus Antonius, your comment would be fully interdisciplinary :-)
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    you mean it would include History or Psychology? I would understand why Marcus Antonius might get fooled by a bathing beauty - but milk? DONKEY MILK?!? That's just wrong... :-[
LeopoldS

Cloud Computing for Mission Design and Operations - 2 views

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    have a look ... article from Claudio
johannessimon81

Enzymes grow artificial DNA - Synthetic strands with different backbones replicate and ... - 0 views

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    Scientists have developed artificial genetic molecules with different structural backbones (XNA, TNA) and/ or a different nucleic acid alphabet. (from April 2012)
Ma Ru

Nice, eye-opening figure about wasting food - 0 views

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    "Roughly one quarter of all the water that humans take from the planet goes into food that nobody eats"... and such
johannessimon81

A spider that builds sculptures ... of spiders - 4 views

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    Weird...
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    Cooool!
LeopoldS

Better Than Human: Why Robots Will - And Must - Take Our Jobs | Gadget Lab | Wired.com - 1 views

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    interesting, long article ... a bit optimistic in my view
tvinko

Big data or Pig data - 6 views

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    my best Pakistani friend's blog (I recommend to follow it)
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    Nice. Though would have liked a better example ..
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    this is a parody on the Norvig-Chomsky debate that has been going on for the last year or so. You can read more about it here: http://norvig.com/chomsky.html
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