Author Topic: The Science Thread  (Read 37474 times)

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Online herman

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Re: The Science Thread
« Reply #285 on: February 22, 2017, 01:36:35 PM »
[youtube]http://www.youtube.com/watch?v=bnKFaAS30X8[/youtube]

Offline Stebro

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Re: The Science Thread
« Reply #286 on: April 04, 2017, 01:09:45 PM »
Are there people living in the inner earth? :o
Life only demands from you the strength that you possess. Only one feat is possible; not to run away.

Offline Bullfrog

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Re: The Science Thread
« Reply #287 on: May 15, 2017, 10:44:19 AM »

Offline hockeyfan1

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Re: The Science Thread
« Reply #288 on: October 19, 2017, 02:34:27 AM »
Albert Einstein's Theory of Relativity came to light when two neutron stars collided emitting gravitational waves as detected by ALIGO -- Advanced Laser Interferometer Gravitational Observatory -- located in the US & Italy.

Data culled from more than 70 observatories worldwide, and the involvement of over 3000 researchers, yielded the missing link to Einstein's prediction answered a century later.  While the ALIGOs were able to detect the gravitational waves and black holes up to now, the lack of observing the collision of the two neutron stars left the question unanswered -- basically the how part.  The latter came to fruition leaving space observers in a state of awe and elation:

Quote
"In 1916, Albert Einstein predicted gravitational waves or ripples in space-time, squeezing and squashing of dimensions, due to violent movement of massive objects in the universe. Einstein predicted gravitational waves as part of his General Relativity Theory, in which he sought to predict how the force of gravity works in space and time," says Prof Razzaque.

"However, gravitational waves are very faint and their detection is extremely challenging. It was only on September 14, 2015, that the first Gravitational Wave event, known among researchers as GW150914, was finally detected. Two instruments in the USA, called ALIGO, picked up the signals created by the collision of two huge black holes," he adds.

"The one black hole was 36 times the mass of the sun, and the other 29 times the mass of the sun. After that, ALIGO detected several more black hole mergers. But a key puzzle piece to understand gravitational waves remained missing: the ability to detect the collision, or merger, of two neutron stars," adds Razzaque.

Quote
"Finally, the puzzle piece Einstein has been looking for came to light as it were. The combined data also showed that the 17 August gamma ray burst, which only lasted a few seconds, was created by the merging of two neutron stars, which then produced an explosion, called a kilonova," says Prof Razzaque.

"Next, the kilonova emitted visible light from the burning of radio-active materials of the stars for several days. In that burning, which was a nuclear reaction taking place in a short period of time, gold and platinum were produced. The process is called rapid nuclear synthesis, the main mechanism to produce Gold and Platinum in the universe," concludes Prof Razzaque.

Simply put, a cataclysmic event in the world of astrophysics.  Albert Einstein would be proud.


https://www.eurekalert.org/pub_releases/2017-10/uoj-han101817.php


Also:
http://www.independent.co.uk/news/science/neutron-star-collision-gravitational-waves-gold-metal-precious-ligo-a8003146.html
« Last Edit: October 19, 2017, 02:40:30 AM by hockeyfan1 »

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Re: The Science Thread
« Reply #288 on: October 19, 2017, 02:34:27 AM »