(Phys.org)—Although in theory it may seem possible to divide time up into infinitely tiny intervals, the smallest physically meaningful interval of time is widely considered to be the Planck time, which is approximately ...
If three or more objects move around each other, history cannot be reversed. That is the conclusion of an international team of researchers based on computer simulations of three black holes orbiting each other. The researchers, ...
Astronomy
Mar 23, 2020
23
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Einstein's theory of gravity and quantum physics are expected to merge at the Planck-scale of extremely high energies and on very short distances. At this scale, new phenomena could arise. However, the Planck-scale is so ...
Quantum Physics
Mar 18, 2012
9
0
We've come a long way in 13.8 billion years; but despite our impressively extensive understanding of the Universe, there are still a few strings left untied. For one, there is the oft-cited disconnect between general relativity, ...
General Physics
Feb 9, 2015
51
277
As weird as it might sound, black holes appear to be holograms.
Astronomy
Dec 19, 2023
117
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(Phys.org)—Although quantum theory can explain three of the four forces in nature, scientists currently rely on general relativity to explain the fourth force, gravity. However, no one is quite sure of how gravity works ...
(Phys.org)—Prominent physicist Jacob D. Bekenstein, of the Hebrew University of Jerusalem, has proposed a simple experiment in a paper he's uploaded to the preprint server arXiv, that he says could be used to measure quantum ...
At the end of Avengers: Infinity War half the people (including heroes and villains) in the universe were gone in the snap of a finger from Thanos (Josh Brolin).
General Physics
Apr 25, 2019
2
502
(Phys.org)—Spacetime may be less like beer and more like sipping whisky.
Astronomy
Aug 23, 2012
53
0
Quantum foam. It may sound like the name of a new craft beer, but it's something even more amazing.
Quantum Physics
Jan 4, 2016
3
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