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iNow
Post  Post subject: Verlinde's new theory of gravity passes first test  |  Posted: Sat Dec 17, 2016 1:55 pm
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What do you think, folks? A promising finding or merely more hokum?

http://phys.org/news/2016-12-verlinde-t ... avity.html
Quote:
A team led by astronomer Margot Brouwer (Leiden Observatory, The Netherlands) has tested the new theory of theoretical physicist Erik Verlinde (University of Amsterdam) for the first time through the lensing effect of gravity. Brouwer and her team measured the distribution of gravity around more than 33,000 galaxies to put Verlinde's prediction to the test. She concludes that Verlinde's theory agrees well with the measured gravity distribution. The results have been accepted for publication in the British journal Monthly Notices of the Royal Astronomical Society.

The gravity of galaxies bends space, such that the light traveling through this space is bent, as through a lens. Background galaxies that are situated far behind a foreground galaxy (the lens), thereby seem slightly distorted. This effect can be measured in order to determine the distribution of gravity around a foreground-galaxy. Astronomers have measured, however, that at distances up to a hundred times the radius of the galaxy, the force of gravity is much stronger than Einstein's theory of gravity predicts. The existing theory only works when invisible particles, the so-called dark matter, are added.
Verlinde now claims that he not only explains the mechanism behind gravity with his alternative to Einstein's theory, but also the origin of the mysterious extra gravity, which astronomers currently attribute to dark matter. Verlinde's new theory predicts how much gravity there must be, based only on the mass of the visible matter.



Read more at: http://phys.org/news/2016-12-verlinde-t ... avity.html

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"[Time] is one of those concepts that is profoundly resistant to a simple definition." ~C. Sagan


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