Midnight In The Desert — black holes

From Black Holes to Dark Matter, an Astrophysicist Explains

Posted by K R on

From Black Holes to Dark Matter, an Astrophysicist Explains

Dark Matter How do you explain dark matter to kids? I tell them that when they touch the table, what they are feeling is the electromagnetic repulsion (or, you know, I use some less jargony way of saying that) between that surface and their hand, and that is what makes it feel solid and what keeps you from passing right through it. Dark matter doesn’t seem to have that force. It has gravity, but it doesn’t do electromagnetic repulsion as far as we can tell. So if dark matter were in the room (which it probably is), it would pass...

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'Listening' to black holes form with gravity waves

Posted by K R on

'Listening' to black holes form with gravity waves

New technology that breaks the quantum measurement barrier has been developed to detect the gravity waves first predicted by Einstein in 1916. Professor David Blair was one of 800 physicists from around the world who announced a breakthrough in measurement science last month. "Gravitational wave astronomy is going to be the new astronomy that's likely to really revolutionise our understanding of the universe," he says. "It will allow us to listen to the big bang and to black holes forming throughout the universe. "These are detectors that can allow humanity to explore the beginning of time and the end of...

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