Archive for the ‘cosmology’ category: Page 389
May 5, 2016
“Black Holes could be Portals to Other Universes” — Stephen Hawking
Posted by Andreas Matt in categories: cosmology, media & arts
https://www.youtube.com/watch?v=T-OTbRoY1ao&feature=share
“Black holes could be interdimentional portals to other universes” — Stephen Hawking.
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Links:
1) VIDEO LINK: https://www.youtube.com/watch?v=enJEbzZi2Fs
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May 3, 2016
New Model Could Show That Stephen Hawking Is Right About Black Holes
Posted by Andreas Matt in categories: cosmology, particle physics
One of the longest standing mysteries of black holes is what happens to stuff when it falls inside. Information can’t move faster than light, so it can’t escape a black hole, but we know that black holes shrink and evaporate over time, emitting Hawking radiation. This has troubled scientists for 40 years. Information can’t simply vanish.
Now, physicists Kamil Brádler and Chris Adami, from the University of Ottawa and Michigan State University respectively, have been able to show that the information is not at all lost, but is transferred from the black holes into the aforementioned Hawking radiation, potentially solving a long-standing mystery of cosmology.
Over 40 years ago, Stephen Hawking put forward the idea that although nothing can escape a black hole, there should be a certain amount of particles emitted from the outer edge of the black hole’s event horizon. This emission would over time steal energy from a black hole, causing it to evaporate and shrink.
Continue reading “New Model Could Show That Stephen Hawking Is Right About Black Holes” »
May 3, 2016
Did WORMHOLES make gravitational waves? Black holes merging may not be the answer
Posted by Andreas Matt in categories: cosmology, physics
WORMHOLES could be responsible for gravitational waves, a new study has suggested, adding more mystery to the “scientific breakthrough of the year”.
May 1, 2016
Are wormholes or ‘gravastars’ mimicking gravitational-wave signals from black holes?
Posted by Andreas Matt in category: cosmology
Interesting…
LIGO experiment could have detected signal from ‘exotic’ compact celestial object.
Apr 28, 2016
Parallel Universes: Theories & Evidence
Posted by Sean Brazell in categories: cosmology, particle physics, singularity
The concept is known as a “parallel universe,” and is a facet of the astronomical theory of the multiverse. There actually is quite a bit of evidence out there for a multiverse. First, it is useful to understand how our universe is believed to have come to be.
Around 13.7 billion years ago, simply speaking, everything we know of in the cosmos was an infinitesimal singularity. Then, according to the Big Bang theory, some unknown trigger caused it to expand and inflate in three-dimensional space. As the immense energy of this initial expansion cooled, light began to shine through. Eventually, the small particles began to form into the larger pieces of matter we know today, such as galaxies, stars and planets.
One big question with this theory is: are we the only universe out there. With our current technology, we are limited to observations within this universe because the universe is curved and we are inside the fishbowl, unable to see the outside of it (if there is an outside.)
Apr 28, 2016
At CERN, eight-inch sensor chips from Infineon could reveal the mysteries of the universe
Posted by Andreas Matt in categories: computing, cosmology, electronics, particle physics
Ninety-five percent of the universe is still considered unexplored. Scientists at CERN, the world’s largest particle physics research center, located in Geneva, are working on solving these mysteries. In May 2012, researchers there discovered the so-called Higgs Boson, whose prediction won Peter Higgs and François Englert the Nobel prize in physics. One of the things CERN scientists are researching at the moment is dark matter: Although it may well have five times the mass of visible matter in the universe, this extent can only be indirectly proved. With a bit of luck, CERN will also succeed in generating dark matter.
A unique sensor chip can contribute to proving the existence of dark matter: It is eight inches or 15 cm x 10 cm and was developed jointly by Infineon Technologies Austria and the Austrian Academy of Sciences’ Institute of High Energy Physics (HEPHY). Tens of thousands of these silicon components could be used at CERN in the near future. They are not only more economical to produce than previous sensors, which measured up to six inches. The components also stand up better to constant radiation and thus age slower than the previous generation. Planned experiments will scarcely be possible without resistant sensors.
The experiments at CERN are analyzing the structure of matter and the interplay among elementary particles: Protons are accelerated almost to the speed of light and then made to collide, giving rise to new particles whose properties can be reconstructed with various detectors. “In particle physics and cosmology, there are many questions that are still open and to which mankind still has no answer,” says Dr. Manfred Krammer, head of the Experimental Physics Department at CERN. “To make new advances in these areas, we need a new generation of particle sensors. Cooperation with high-tech companies like Infineon allows us to develop the technologies we need for that.”
Apr 27, 2016
Supermassive black holes and dark matter create space ‘tunnels’, Lancaster university says
Posted by Andreas Matt in categories: cosmology, particle physics
Dr Konstantinos Dimopoulos, a physicist at the University of Lancaster, believes that at the centre of some galaxies – where densely packed gas and dust burns incredibly brightly around a supermassive black hole – powerful magnetic fields which fire out from the jets of the black holes could affect the properties of dark matter.
As the burning galactic nucleus churns, Dr Dimopoulos claim that one type of dark matter in particular, made of theoretical particles called axions, would be affected.
Apr 27, 2016
Does Quantum Weirdness Arise When Parallel Classical Worlds Repel?
Posted by Andreas Matt in categories: cosmology, quantum physics
With that goal in mind, a few years back, Wiseman began to ponder what would happen if multiple worlds not only existed, but could influence each other. Within these worlds even objects on the smallest scales obey the plain old rules that Isaac Newton devised to explain force and motion. A classical law is also used to describe the forces that the parallel worlds exert on each other. “Ours is a new picture of reality at the atomic scale,” Hall says, adding that they believe it to be “both elegant in principle, and useful for calculations in practice.”