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Archive for the ‘cosmology’ category: Page 263

Aug 22, 2016

Quantum Physicists Eager To Hear What Frank At The Pub Reckons They Should Study

Posted by in categories: cosmology, quantum physics

Actually, I know many scientists and techies who hang out with the average Joe or Jill to get their minds off of being 1 dimensional and as a result gives them the recharge they need for innovation and creativity.


Quantum physicists studying the edges of our understanding of the universe are reportedly very eager to hear what Frank down at the local reckons they should study next, following Treasurer Scott Morrison’s warning that research should pass the ‘pub test’.

Morrison warned against esoteric, pointless research that costs an abundance of public money and has only lead to major, world-changing breakthroughs in unexpected areas a few times. Instead, the Treasurer has advised that before engaging in any boring and elitist research that only people specifically studying the field would care about, scientists should head down to the pub and check in with Frank to see what he thinks.

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Aug 22, 2016

Dark Matter review – quantum fiction that’s delightfully unserious

Posted by in categories: cosmology, quantum physics

Blake Crouch, author of the Wayward Pines trilogy, opens up a new and infinitely filmable world.

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Aug 22, 2016

Miniature black holes may be hitting Earth once every 1,000 years

Posted by in category: cosmology

(A fanciful illustration of small black holes passing through EarthPhoto by NASA/Illustration by Dave Mosher)

First, the good news: You have not been killed by a black hole.

The strange news is that it’s possible the universe is teeming with microscopic black holes that formed at the dawn of time, all of them hurtling through space like cosmic bullets.

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Aug 19, 2016

Parallel Worlds Exist And Interact With Our World, Physicists Say

Posted by in categories: cosmology, quantum physics

Quantum mechanics, though firmly tested, is so weird and anti-intuitive that famed physicist Richard Feynman once remarked, “I think I can safely say that nobody understands quantum mechanics.” Attempts to explain some of the bizarre consequences of quantum theory have led to some mind-bending ideas, such as the Copenhagen interpretation and the many-worlds interpretation.

Now there’s a new theory on the block, called the “many interacting worlds” hypothesis (MIW), and the idea is just as profound as it sounds. The theory suggests not only that parallel worlds exist, but that they interact with our world on the quantum level and are thus detectable. Though still speculative, the theory may help to finally explain some of the bizarre consequences inherent in quantum mechanics, reports RT.com.

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Aug 16, 2016

New Evidence For a Fifth Fundamental Force of Nature Could Completely Change Our Understanding of The Universe

Posted by in categories: cosmology, particle physics

Recent findings indicating the possible discovery of a previously unknown subatomic particle may be evidence of a fifth fundamental force of nature, according to a paper published in the journal Physical Review Letters by theoretical physicists at the University of California, Irvine.

“If true, it’s revolutionary,” said Jonathan Feng, professor of physics & astronomy. “For decades, we’ve known of four fundamental forces: gravitation, electromagnetism, and the strong and weak nuclear forces. If confirmed by further experiments, this discovery of a possible fifth force would completely change our understanding of the universe, with consequences for the unification of forces and dark matter.”

The UCI researchers came upon a mid-2015 study by experimental nuclear physicists at the Hungarian Academy of Sciences who were searching for “dark photons,” particles that would signify unseen dark matter, which physicists say makes up about 85 percent of the universe’s mass. The Hungarians’ work uncovered a radioactive decay anomaly that points to the existence of a light particle just 30 times heavier than an electron.

Continue reading “New Evidence For a Fifth Fundamental Force of Nature Could Completely Change Our Understanding of The Universe” »

Aug 16, 2016

A possible cause of the Big Bang and current acceleration of the Universe

Posted by in categories: cosmology, information science, physics

We consider a solution of the Einstein equations for a system comprised of merging black holes and show that the solution contains a term which represents a repulsive force. This repulsive term is proportional to 1/r, where r is the distance from the system, and it is additional to the common Newtonian term which is proportional to 1/r2. This repulsive force acts as an effective dark energy if the total mass of the Universe is decreased.

As seen below, a shape of the gravitational potential is often illustrated by a funnel made of rubber film where a heavy ball (blue) is located in the center. In this model, a fast decrease of the gravitational mass corresponds with a sharp ascent of the ball. The film attached to the ball forms a cone-type hill in the center of the funnel. Light balls (green) on the central cone run away from the center. The central cone expands fast but keeps it exterior slope; this corresponds to long-term repulsive force.

A mechanism of the repulsive force may be applied to a model of the expanding Universe. This may imply that the Big Bang and accelerated expansion of the Universe is not related to current processes in the Universe but to a relic repulsive gravitational force or to a configuration of space-time that originates in the previous cycle of the Universe when at the last stage of a collapse the intensive generation of gravitational waves resulted in sharp decrease of the gravitational mass of the Universe. This process generated a powerful repulsive force that transformed the Big Crunch into the Big Bang. Because the repulsive acceleration decreases with time, the current Universe expands with lower acceleration. Decreasing acceleration of the Universe can be verified by observations. Gravitational waves caused by the compression of the Universe may not disappear at the stage of expansion and form the relic gravitational radiation.

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Aug 16, 2016

China Launches New Space Race with World’s First Quantum Satellite –“Portal to a Whole New Universe”

Posted by in categories: cosmology, particle physics, quantum physics, space travel

At 1.40am this morning, China launched a new Space Race with the world’s first quantum satellite, recently named Micius after an ancient Chinese philosopher and engineer, who, more than 2,400 years ago, proposed that light always travelled in a straight line and that the physical world was made up by particles. Quantum teleportation technology would be able to eliminate the 20-minute time delay in communication between earth and Mars and would allow tiny spacecraft to send back images and videos of planets many light years away without the need to carry a huge antenna. It could even give us a glimpse of what’s inside a black hole.

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Aug 15, 2016

Evidence of Stephen Hawking’s famous prediction about black holes was just observed for the first time

Posted by in categories: cosmology, quantum physics

This nice; however, China’s Quantum Sat. announcement is the big news this morning.


Black holes might not be the bottomless pits we think they are.

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Aug 15, 2016

Physicists confirm possible discovery of fifth force of nature

Posted by in categories: cosmology, particle physics

Recent findings indicating the possible discovery of a previously unknown subatomic particle may be evidence of a fifth fundamental force of nature, according to a paper published in the journal Physical Review Letters by theoretical physicists at the University of California, Irvine.

“If true, it’s revolutionary,” said Jonathan Feng, professor of physics & astronomy. “For decades, we’ve known of four fundamental forces: gravitation, electromagnetism, and the strong and weak nuclear forces. If confirmed by further experiments, this discovery of a possible fifth force would completely change our understanding of the universe, with consequences for the unification of forces and dark matter.”

The UCI researchers came upon a mid-2015 study by experimental nuclear physicists at the Hungarian Academy of Sciences who were searching for “dark photons,” that would signify unseen dark matter, which physicists say makes up about 85 percent of the universe’s mass. The Hungarians’ work uncovered a radioactive decay anomaly that points to the existence of a light particle just 30 times heavier than an electron.

Read more

Aug 15, 2016

Scientists Built a ‘Mini Black Hole’ Out of Sound Waves

Posted by in category: cosmology

A tabletop black hole emits what looks like Hawking radiation.

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