THE PHYSICS DETECTIVE
1,046 FOLLOWERS
The physics detective is a fundamental physics website. It features blog-style essays which refer to historical papers and hard scientific evidence. The aim is to play the detective and come up with coherent descriptions of some of the things that tend to be overlooked. Such as how gravity works, how a magnet works, and how the nuclear force works. Plus other things like how pair production..
THE PHYSICS DETECTIVE
3w ago
In physics, there is something called Malus’s law. It’s named after Étienne-Louis Malus, whose name is one of 72 names on the Eiffel Tower. It dates from way back, to 1809, and it gives the intensity of light passing through two ideal polarizers: Malus’s law image from Rod Nave’s most excellent hyperphysics website This intensity ..read more
THE PHYSICS DETECTIVE
2M ago
Last year I wrote about quantum entanglement, looking at the history and talking about the physics. I went through John Stewart Bell’s famous 1964 paper On the Einstein Podolsky Rosen Paradox, and talked about Bell’s inequality, which is also known as Bell’s theorem. Now I thought I’d take a look at Bell’s 1980 paper on ..read more
THE PHYSICS DETECTIVE
3M ago
So, how has physics been this past year? Let’s start by taking a look at Physics World. In an article dated 7th December 2023, online editor Hamish Johnston said this: “Physics World is delighted to announce its top 10 Breakthroughs of the Year for 2023, which ranges from research in astronomy and medical physics to quantum ..read more
THE PHYSICS DETECTIVE
4M ago
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 ..read more
THE PHYSICS DETECTIVE
5M ago
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 ..read more
THE PHYSICS DETECTIVE
7M ago
There have been some dreadful events in Israel, with terrorists going door to door killing women and children, and more. Meanwhile sections of our media and community refuse to condemn such acts, and call the perpetrators “militants”. Such is the corruption in our society. As I was saying last time, honesty and decency are in ..read more
THE PHYSICS DETECTIVE
8M ago
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 ..read more
THE PHYSICS DETECTIVE
9M ago
If you do a Google search on lifters today, what you see is a bunch of mechanical contraptions such as pallet stackers, disability aids, and cooking utensils. When you finally find something of interest on page 4 of the search results, it’s a Wikipedia disambiguation page saying “Lifter may refer to an ion-propelled aircraft, a ..read more
THE PHYSICS DETECTIVE
11M ago
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 ..read more
THE PHYSICS DETECTIVE
1y ago
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 ..read more