Do black holes have singularities?

I think Roy Kerr’s recent paper is important. It’s called Do black holes have singularities? I think it’s important because it challenges an orthodoxy that’s been taken for granted, and because Kerr has the authority to get some attention. That’s because he was in on the Golden Age of General Relativity, and because the EHT collaboration described both M87* and Sagittarius A* as matching the Kerr metric. To set the scene, black hole physics has been around for a long time, but a major development was…

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The Tomorrow War

I’ve always liked science fiction. I can’t explain why. I just do. When I was a boy I’d go to the library and bring home yellow-jacket Gollancz science fiction books to read. When I was a teenager I’d buy paperbacks from the bookshops. I have about a thousand science fiction books on the shelves in our back room. We call it “the library”, but there’s also an electric piano, a sofa, and a seventy-inch TV. The “library” It’s my favourite place for watching movies. I don’t…

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Nature and corruption

There was an important news story in the Telegraph last Thursday: Climate scientist admits overhyping impact of global warming on wildfires to get published. It was written by Sarah Knapton, the Telegraph science editor, and it featured a climate scientist called Dr Patrick T Brown. He’s a whistleblower, and I totally applaud the guy. He was referring to a paper he co-authored that was published in Nature. It was called Climate warming increases extreme daily wildfire growth risk in California. Nature cover, Volume 621 Issue 7977,…

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The psychology of belief

Many years ago I wrote an article called belief explained. You can find a 2007 version of it on a website called scienceforums.net. A development of that was an article called the psychology of belief. You can find a 2010 version of that on a forum called ILovePhilosophy.com. I wrote it because way back in about 2006, I realised that I believed in things for which there was no scientific evidence at all. I don’t just mean things like religion and politics. I mean things in…

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Quantum entanglement is scientific fraud

The quantum entanglement story began in 1935 with the EPR paper. That’s where Einstein, Podolsky, and Rosen said quantum mechanics must be incomplete, because it predicts a system in two different states at the same time. Later that year Bohr replied saying spooky action at a distance could occur. Then Schrödinger came up with a paper where he talked of entanglement, a paper where he used his cat to show how ridiculous the two-state situation was, and a paper saying he found spooky action at a…

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Quantum entanglement history II

As I was saying last time, the 2022 physics Nobel Prize was awarded to John Clauser, Alain Aspect, and Anton Zeilinger for their contribution to quantum entanglement. This is associated with instantaneous “spooky action at a distance”, and is said to play an important role in quantum computing. It all started in 1935 with the EPR paper, where Einstein, Podolsky, and Rosen said quantum mechanics must be incomplete because it predicts a system in two different states at the same time. Bohr gave a rambling off-topic…

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Quantum entanglement history I

The 2022 Nobel prize in physics was awarded to Alain Aspect, John Clauser and Anton Zeilinger "for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science". Hamish Johnston gave a brief account in Physics World on October 4th. He said the three laureates performed the key experiments that established the quantum property of entanglement. That’s quantum entanglement, which is often described as spooky action at a distance. The idea is that you produce two photons from one event, and when…

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The race to invent new particles is pointless

Sabine Hossenfelder had an article in the Guardian last month. As you will doubtless know, she’s the author of the Backreaction blog. It used to be a physics blog with a bad reputation for comment censorship. Now it’s a YouTube blog, and there are no comments*. That’s because Hossenfelder is a “follow me on Twitter” type who talks at you, not to you. She’s never been interested in what anybody had to say. Moreover it’s crystal clear she’s never read the Einstein digital papers or the…

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Physics is dead, long live physics

I was pleased to read about the launch of the James Webb space telescope on Christmas Day. I do hope everything goes smoothly. It will take about a month to get on station, about three months before it’s cold enough to function, and about six months before it’s commissioned. Unlike Hubble, which was in a low Earth orbit, Webb will be in a “halo” orbit around the L2 Lagrange point a million miles from Earth. Along the way there are 3 burns and 50 deployments with…

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The leptoquark hype

There was an article in The Daily Telegraph last week. The title was Key step to unlocking mysteries of the universe. The subtitle was Hearts ‘set racing’ at site of Large hadron Collider as experiments hint at a new force of nature. You can find an online version at Key to how universe works may have been discovered. Both the print and the online versions were written by science editor Sarah Knapton, and whilst the title and illustrations are a little different, the content is the…

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