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Scientists challenge Einstein with chameleon theory



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			<span class= Christian Arnold / Baojiu Li / Durham University

Few things are more consistent than gravity, from everything on a bookshelf or desk to giant planets like Jupiter and Saturn, everything is the same in gravity, but physicists at Durham University in the UK now say this may not be the case.

Scientists are studying an alternative to the standard theories of gravity they called the chameleon theory they say Dependence on the environment. "

Traditionally, both gravity and galaxy formation are explained by Einstein's theory of general relativity, which Einstein believed gravity to be a geometric E property of space and time or spacetime. It aims to explain how large bodies function in space, such as understanding Jupiter's orbit around the Sun and Europe's orbit around Jupiter. It has been proven that the complex theory of 2018 definitely works on a galactic level thanks to observations made by ESO's Very Large Telescope.

However, physicists believe that simulations with Durham's DiRAC Data Centric System have more than one way to build a galaxy.

"Using chameleon theory, the laws of gravity can be modified to test the effect of gravity changes on galaxy formation," says Durham Institute for Computational Cosmology news release co-lead author Christian Arnold. "Our simulations have shown for the first time that even with a change in gravity, the formation of disk galaxies with spiral arms is not prevented."

Arnold and his research do not prove that General Theory of Relativity is wrong, that this need not be the only way to explain the role of gravity in the evolution of the universe, "he says.

F (R) Gravity is known to modify Einstein's complex theory, as black holes were, as seen in a photo earlier this year, a crucial part of his theory: the surrounding black holes are massive disks that generate enormous amounts of heat – so much heat that what is sent into the universe can change the gravity in the surrounding regions.

"In General Theory of Relativity, scientists explain the accelerated expansion of the universe by introducing a mysterious form of matter called dark energy whose simplest form can be a cosmological constant whose density is constant in space and time. "sa gt Baojiu Li, also from the Durham Institute for Computational Cosmology.

"However," he continues, "alternatives to a cosmological constant explain the accelerated expansion by modifying the law of gravitation, such as f (R) gravitation, also considering how little is known about dark energy , widely considered. " 19659004] At the moment, everything is very theoretical, but Arnold and Li hope that they will be able to further investigate their simulations in 2020. Then the Square Kilometer Array (SKA), the world's largest radio telescope, opens its doors in South Africa. Right at the top of SKA's priority list is "Challenging Einstein".


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