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Archive for the ‘cosmology’ category

May 1, 2016

Are wormholes or ‘gravastars’ mimicking gravitational-wave signals from black holes?

Posted by in category: cosmology

Interesting…


LIGO experiment could have detected signal from ‘exotic’ compact celestial object.

May 1, 2016

Man Made Black Hole

Posted by in category: cosmology

Click on photo to start video.

Scientists have created the first artificial black hole.

Apr 28, 2016

Parallel Universes: Theories & Evidence

Posted by 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 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 : 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 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 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.

Continue reading “Supermassive black holes and dark matter create space ‘tunnels’, Lancaster university says” »

Apr 27, 2016

Does Quantum Weirdness Arise When Parallel Classical Worlds Repel?

Posted by 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.”

Apr 26, 2016

Physicists might soon be able to prove one of Stephen Hawking’s theories on black holes

Posted by in categories: cosmology, particle physics

Nice


Some 42 years ago, renowned theoretical physicist Stephen Hawking proposed that not everything that comes in contact with a black hole succumbs to its unfathomable nothingness.

Tiny particles of light (photons) are sometimes ejected back out, robbing the black hole of an infinitesimal amount of energy, and this gradual loss of mass over time means every black hole eventually evaporates out of existence.

Continue reading “Physicists might soon be able to prove one of Stephen Hawking’s theories on black holes” »

Apr 26, 2016

Black holes created in LAB confirm Stephen Hawking’s radiation theory

Posted by in category: cosmology

Two separate groups of researchers, from Israel and Michigan State University, have discovered evidence to back up Professor Hawking’s claims from 1974.

Apr 22, 2016

Stephen Hawking: “History and memories could be illusions” because of black holes

Posted by in categories: cosmology, particle physics

Welcome to our imaginary existential nightmare…


Stephen Hawking recently discussed black holes and the often contradictory properties associated with them during a lecture at Harvard. The Harvard Gazette said recently that Hawking specifically explained that, if information is really lost in black holes, then we will have been misunderstanding not only black holes, but the science of determinism, for the last 200 years.

Hawking said that particles that fall into a black hole “can’t just emerge when the black hole disappears.” Instead, “the particles that come out of a black hole seem to be completely random and bear no relation to what fell in. It appears that the information about what fell in is lost, apart from the total amount of mass and the amount of rotation.”

Continue reading “Stephen Hawking: ‘History and memories could be illusions’ because of black holes” »

Apr 21, 2016

Hunting light dark matter with gamma rays

Posted by in category: cosmology

Science at OKC

Hunting light dark matter with gamma rays.

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