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jaihobah

Vanishing star hints at direct collapse to black hole - 0 views

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    The rules for a stellar death seem pretty simple. If the star isn't that massive, it burns out into a carbon-rich remnant called a white dwarf. If it's big enough, the star ends in a bang, exploding in a supernova that can leave behind a neutron star or a black hole.
jcunha

New black hole visualization takes viewers beyond the brink - 0 views

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    Somehow looks familiar :)
Chritos Vezyri

Black nanoparticles could play key role in clean energy photocatalysis - 0 views

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    Splitting water with TiO2 to generate H2
LeopoldS

David Miranda, schedule 7 and the danger that all reporters now face | Alan Rusbridger ... - 0 views

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    During one of these meetings I asked directly whether the government would move to close down the Guardian's reporting through a legal route - by going to court to force the surrender of the material on which we were working. The official confirmed that, in the absence of handover or destruction, this was indeed the government's intention. Prior restraint, near impossible in the US, was now explicitly and imminently on the table in the UK. But my experience over WikiLeaks - the thumb drive and the first amendment - had already prepared me for this moment. I explained to the man from Whitehall about the nature of international collaborations and the way in which, these days, media organisations could take advantage of the most permissive legal environments. Bluntly, we did not have to do our reporting from London. Already most of the NSA stories were being reported and edited out of New York. And had it occurred to him that Greenwald lived in Brazil?

    The man was unmoved. And so one of the more bizarre moments in the Guardian's long history occurred - with two GCHQ security experts overseeing the destruction of hard drives in the Guardian's basement just to make sure there was nothing in the mangled bits of metal which could possibly be of any interest to passing Chinese agents. "We can call off the black helicopters," joked one as we swept up the remains of a MacBook Pro.

    Whitehall was satisfied, but it felt like a peculiarly pointless piece of symbolism that understood nothing about the digital age. We will continue to do patient, painstaking reporting on the Snowden documents, we just won't do it in London. The seizure of Miranda's laptop, phones, hard drives and camera will similarly have no effect on Greenwald's work.

    The state that is building such a formidable apparatus of surveillance will do its best to prevent journalists from reporting on it. Most journalists can see that. But I wonder how many have truly understood
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    Sarah Harrison is a lawyer that has been staying with Snowden in Hong Kong and Moscow. She is a UK citizen and her family is there. After the miranda case where the boyfriend of the reporter was detained at the airport, can Sarah return safely home? Will her family be pressured by the secret service? http://www.bbc.co.uk/news/world-latin-america-23759834
johannessimon81

Did a hyper-black hole spawn the Universe? - 3 views

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    Big Bang was mirage from collapsing higher-dimensional star, theorists propose.
Luís F. Simões

Russian Physicists Solve Radio Black-Out Problem for Re-Entering Spacecraft  ... - 1 views

  • When spacecraft return to Earth, one of the tensest parts of the mission is the radio black out that occurs as the vehicle re-enters the atmosphere. Travelling at hypersonic speeds of between Mach 8 and 15, the spacecraft heats and breaks down molecules in the atmosphere causing a plasma to form. It is this plasma sheath that prevents radio communication.
  • Ref: arxiv.org/abs/0704.3103: Communication Through Plasma Sheaths
LeopoldS

Prox Dynamics' Black Hornet nano-copter gets demoed on video - 0 views

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    impressive helicopters ... flying slightly better than our gadgets ...
Francesco Biscani

Slashdot Science Story | First Acoustic Black Hole Created - 0 views

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    This would be really cool, hawking radiation yeah !
pacome delva

Milky Way Grew by Swallowing Other Galaxies - 0 views

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    Globular clusters in our galaxy would be the remnants of dwarf galaxies eaten by our galaxy the milky way ! This assumption is quite revolutionary and would support an accretion model of the universe rather than the formation of huge galaxies. So what about the formation of giant black holes in the center of galaxies...?
Nina Nadine Ridder

Gravitational waves from black holes detected - BBC News - 1 views

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    From the section Science & Environment Scientists are claiming a stunning discovery in their quest to fully understand gravity. They have observed the warping of space-time generated by the collision of two black holes more than a billion light-years from Earth.
Marcus Maertens

Travel through wormholes is possible, but slow - 2 views

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    Travelling through wormholes is not much different from quantum teleportation using entangled black holes...
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