Archive for the ‘cosmology’ category: Page 319
Jun 6, 2019
Spacetime Geometry near Rotating Black Holes Acts Like Quantum Computer, Physicist Says
Posted by Quinn Sena in categories: computing, cosmology, quantum physics
According to a theoretical paper published in the Annals of Physics, by Dr. Ovidiu Racorean from the General Direction of Information Technology in Bucharest, Romania, the geometry of spacetime around a rapidly spinning black hole (Kerr black hole) behaves like a quantum computer, and it can encode photons with quantum messages.
Jun 6, 2019
Black Hole Propulsion as Technosignature
Posted by Quinn Sena in categories: cosmology, physics
When he was considering white dwarfs and neutron stars in the context of what he called ‘gravitational machines,’ Freeman Dyson became intrigued by the fate of a neutron star binary. He calculated in his paper of the same name (citation below) that gradual loss of energy through gravitational radiation would bring the two neutron stars together, creating a gravitational wave event of the sort that has since been observed. Long before LIGO, Dyson was talking about gravitational wave detection instruments that could track the ‘gravitational flash.’
Image: Artist conception of the moment two neutron stars collide. Credit: LIGO / Caltech / MIT.
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Jun 6, 2019
Using black holes to conquer space: The halo drive
Posted by Quinn Sena in categories: cosmology, space travel
The idea of traveling to another star system has been the dream of people long before the first rockets and astronauts were sent to space. But despite all the progress we have made since the beginning of the Space Age, interstellar travel remains just that – a dream. While theoretical concepts have been proposed, the issues of cost, travel time and fuel remain highly problematic.
A lot of hopes currently hinge on the use of directed energy and lightsails to push tiny spacecraft to relativistic speeds. But what if there was a way to make larger spacecraft fast enough to conduct interstellar voyages? According to Prof. David Kipping, the leader of Columbia University’s Cool Worlds lab, future spacecraft could rely on a halo drive, which uses the gravitational force of a black hole to reach incredible speeds.
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Jun 6, 2019
Black Hole Drive Could Power Future Starships
Posted by Quinn Sena in categories: cosmology, space travel
What would happen if humans could deliberately create a blackhole? Well, for starters we might just unlock the ultimate energy source to create the ultimate spacecraft engine — a potential “black hole-drive” — to propel ships to the stars.
It turns out black holes are not black at all; they give off “Hawking radiation” that causes them to lose energy (and therefore mass) over time. For large black holes, the amount of radiation produced is miniscule, but very small black holes rapidly turn their mass into a huge amount of energy.
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Jun 6, 2019
Scientists Discover Space’s Largest Intergalactic Bridge, Solving A Huge Dark Matter Puzzle
Posted by Quinn Sena in category: cosmology
Dark matter’s naysayers latched onto one tiny puzzle. This new find may have solved it completely.
Jun 6, 2019
Most-detailed-ever simulations of black hole solve longstanding mystery
Posted by Genevieve Klien in category: cosmology
An international team has constructed the most detailed, highest resolution simulation of a black hole to date. The simulation proves theoretical predictions about the nature of accretion disks—the matter that orbits and eventually falls into a black hole—that have never before been seen.
Jun 5, 2019
We’ve seen signs of a mirror-image universe that is touching our own
Posted by Quinn Sena in category: cosmology
New experiments are revealing hints of a world and a reality that are complete reflections of ours. This mirrorverse may be able to solve the mystery of the universe’s missing dark matter.
Jun 4, 2019
Mini antimatter accelerator could rival the likes of the Large Hadron Collider
Posted by Quinn Sena in categories: computing, cosmology, particle physics, transportation
Researchers have found a way to accelerate antimatter in a 1000x smaller space than current accelerators, boosting the science of exotic particles.
The new method could be used to probe more mysteries of physics, like the properties of the Higgs boson and the nature of dark matter and dark energy, and provide more sensitive testing of aircraft and computer chips.
The method has been modelled using the properties of existing lasers, with experiments planned soon. If proven, the technology could allow many more labs around the world to conduct antimatter acceleration experiments.
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Jun 2, 2019
The Higgs boson may have stopped the early universe from collapsing
Posted by Quinn Sena in category: cosmology
Moments after the big bang, calculations show the universe could have collapsed into black holes. The reason it didn’t could be explained by the Higgs boson.