Wolfgang “Wolfi” Mittig and Yassid Ayyad began their search for dark matter—also referred to as the missing mass of the universe—in the heart of an atom.
An atom is the smallest component of an element. It is made up of protons and neutrons within the nucleus, and electrons circling the nucleus.
According to a University of Portsmouth study, a new physics law could allow for the early prediction of genetic mutations.
The study discovers that the second law of information dynamics, or “infodynamics,” behaves differently from the second law of thermodynamics. This finding might have major implications for how genomic research, evolutionary biology, computing, big data, physics, and cosmology develop in the future.
Lead author Dr. Melvin Vopson is from the University’s School of Mathematics and Physics. He states “In physics, there are laws that govern everything that happens in the universe, for example how objects move, how energy flows, and so on. Everything is based on the laws of physics. One of the most powerful laws is the second law of thermodynamics, which establishes that entropy – a measure of disorder in an isolated system – can only increase or stay the same, but it will never decrease.”
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Einstein’s theory of general relativity has made countless correct predictions and yet physicists are constantly trying to prove it wrong. Why? What would it be good for to prove Einstein wrong? And how could it be done? In this video I go through the most promising experiments that physicists currently work on which could prove Einstein wrong.
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The new constraints from gamma ray bursts:
https://arxiv.org/abs/2109.
The new Afshordi paper on black hole echoes.
https://arxiv.org/abs/2201.
Aspelmeyer et al’s quest for massive superpositions.
Quantum entanglement and spacetime wormholes helped to solve a long-standing quandary.
Astronomers may soon have the answer to what is perhaps the greatest mystery of modern science –is dark energy a uniform force across space and time, or has its strength evolved over eons?
The universe is not only expanding – it is accelerating outward, driven by what is commonly referred to as “dark energy.” The term is a poetic analogy to the label for dark matter, the mysterious material that dominates the matter in the Universe and that really is dark because it does not radiate light (it reveals itself via its gravitational influence on galaxies).
From black holes to dark energy to chances for life in the Universe, our cosmic journey to understand it all is just getting started.
Our own Milky Way has a relatively calm center, but this wasn’t always the case — just a few million years ago, the galaxy’s black hole flared briefly.
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The Nobel prize in physics this year went to black holes. Generally speaking. Specifically, it was shared by the astronomers who revealed to us the Milky Way’s central black hole and by Roger Penrose, who proved that in general relativity, every black hole contains a place of infinite gravity — a singularity. But the true impact of Penrose’s singularity theorem would is much deeper — it leads us to the limits Einstein’s great theory and to the origin of the universe.
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Lecture from the mini-series “Cosmology & Quantum Foundations” from the “Philosophy of Cosmology” project. A University of Oxford and Cambridge Collaboration.
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Today I tell you how my opinion about dark matter has changed an why. Is modified gravity better or worse? What evidence speaks for one side or the other, and is the case really as clear-cut as many astrophysicists claim?
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#physics #space #astronomy.
0:00 Intro.
0:23 What is dark matter?
2:22 Evidence for dark matter.
5:11 Evidence against dark matter.
7:25 If not dark matter, then what?
9:43 Why we haven’t made progress.
10:37 Sponsor message.
