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Stephen Havking's prognosis was confirmed thanks to a laboratory black hole



The scientists in Israel combined gravity with quantum physics in a revolutionary experiment.

One year after the death of Stephen Havking, one of his theory defining his career was confirmed. Known as Havking Radiation, it was first conceptualized in 1974, but has been debated for decades. A team of scientists in Israel has just published a work that essentially proves its existence.

First a background …

Albert Einstein first predicted the formation of black holes with his theory of general relativity. It is a space of space time that shows such strong gravitational effects that nothing – even fine particles – can escape from it. "The black hole is the ultimate prison, even the light can not escape," said Avi Loeb, chairman of the Harvard Department of Astronomy. Something else that could not escape? Radiation. Well, at least that's what many physicists thought while Hawking did not assume that a black hole could really radiate radiation.

Black holes are known as mysterious and because they are so far away, it is difficult to study them. So, proving Hawking's theory was difficult – by now. Researchers at the Israel Technion Institute, dubbed MIT Mediterranean, created a black hole in the laboratory. It's not a real black hole, it's an analog black hole that uses quantum material known as the Bose-Einstein condensate. For research purposes, it shares many of the same qualities of a black hole in space.


Israeli Professor Jeff Steinhauer used high-tech equipment to create a facsimile black hole in his lab.

Israeli Professor Jeff Steinhauer used high-tech equipment to create a facsimile black hole in his lab. (Photo: Technion – Israel Institute of Technology)

Using this technique, Technion's researchers have managed to create what is known as a sound black hole – instead of capturing light, it captures sound. No sound should be able to escape the impenetrable lining of the black hole, but found that when one sound wave enters, the other will turn out. This proved Havking's theory that other materials – such as radiation – can leak out of the black hole.

"The combination of quantum physics with gravity today is one of the main goals of physics," said Jeff Steinhauer, lead researcher at Space.com. "Hoking has taken the first steps toward this. His calculations predicted that there should be light from a black hole, and it turned out that his calculations are correct."

New results confirm the initial finding of Steinhauer and his colleagues from 2016, when CNN reported on the discovery:

Ulf Leonhardt from the Veizmann Institute of Science in Israel was not involved in the studio, but was impressed with the findings. "It's a very important milestone," said a physicist for ScienceNevs.org. "It's new in the whole field. Nobody has done such an experiment before."

It's been a long time for the science of black holes. In April, an international team of scientists discovered something that no human had ever seen: the first picture of a black hole. At that time, one of the scientists who participated in the study said: "This is the beginning. There is an anticipation of all the incredible science that we can do."

Steinhauer added: "The laws of physics often have applications for years down the road and no one today knows what will be."

The scientists in Israel combined gravity with quantum physics in a revolutionary experiment.


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