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Showing posts with label Physics. Show all posts
Showing posts with label Physics. Show all posts

Saturday, December 28, 2024

Physicists Claim They Solved Schrödinger's Cat Problem

The Schrödinger's Cat thought experiment illustrates the absurd consequences of the mathematics of quantum physics: A cat trapped in a box seems to be both alive and dead at the same time. We all agree that that’s absurd, but just why do we not ever see dead-and-alive cats? This question has vexed physicists for more than a century. A group of researchers now say they’ve solved the problem. Let’s take a look.



This video comes with a quiz which you can take here:

Friday, December 27, 2024

This Physicist Says We’re Using Maths Entirely Wrong

Intuitionist mathematics is the idea that the entire discipline of maths is a mental construct based on human thought rather than a platonic realm of eternal truths. According to physicist Nicolas Gisin, one of this idea’s biggest proponents, that maths is based on human intuition is the reason why quantum mechanics seems so strange. Let’s take a look.

Monday, December 23, 2024

Scientists See Hidden Order in Quantum Chaos: A First

Chaos doesn’t exist in the world of quantum physics, as quantum physics is a linear theory. So how come we observe chaos all around us? Researchers have now come one step closer to understanding how it happens. They have for the first time measured a “quantum scar”, that is a quantum effect which deviates from chaos. Why does this matter and what could it be good for? Let’s take a look.

Saturday, December 21, 2024

The Biggest Physics Stories of 2024

2024 has been quite the wild ride, but now it’s time to take a step back and appreciate how far we’ve come this year. Let’s take a look at the five most important developments in physics in 2024, according to me.



This video comes with a quiz which you can take here:



You can now also create your own quizzes on my platform from text input using GPT.

Monday, December 16, 2024

No, Google Did Not Prove that Parallel Universes Exist



This video comes with a quiz which you can take here:



You can now also create your own quizzes on my website.

Saturday, December 14, 2024

This Physics Problem Can’t Be Solved

According to physicists, everything in the universe is physics. Chemistry, biology, why you crave cake at 11:00 pm – you name it, it can eventually be explained by physics. But what if some physics problems require calculations that are just impossible? The authors of a new paper claim they’ve found a measurable quantity in a physical system that just can’t be computed. Let’s take a look.

Sunday, December 08, 2024

What Would Change with a “New Physics” Breakthrough?

“New physics” is a catch-all term for fundamentally new discoveries in physics (such as dark matter, quantum gravity, or a theory of everything) which push the boundaries of how we understand our reality. How could new discoveries in these areas of research affect our lives? Let’s take a look at what knowledge and practical use we could potentially gain.

Thursday, December 05, 2024

Theory of Everything Predicts New Physics For Supermassive Black Holes

Mathematician Stephen Wolfram has attempted to develop a theory of everything using hypergraphs, which are essentially sets of graphs that can describe space-time. Recently, another mathematician named Jonathan Gorard has used hypergraphs to describe what happens if a black hole accretes matter. He claims that evidence for hypergraphs should be observable in the energy that is emitted during the accretion. Big if true, as they say. Let’s take a look.

Sunday, December 01, 2024

The Crisis in Cosmology Just Got So Much Worse

In the past decade, astrophysicists have found a lot of evidence that our large-scale theory for how the universe works has some large-scale problems as well. It has, however, remained controversial whether this is a problem with data collection or whether it is indeed a problem with our understanding of the universe. In a new paper, astrophysicists now demonstrate that something is wrong with the theory indeed. It could be the first good evidence that “Einstein was wrong.” Let’s take a look.



This video comes with a quiz which you can take here:



You can now also create your own quizzes on my website!

Thursday, November 28, 2024

Huge Physics Anomaly Finally Put to Test, But That Just Makes it More Confusing

Ten years ago, physicists discovered an anomaly that was dubbed the “ATOMKI anomaly”. The decays of certain atomic nuclei disagreed with our current understanding of physics. Particle physicists assigned the anomaly to a new particle, X17, often described as a fifth force. The anomaly was now tested by a follow-up experiment, but this is only the latest twist in a rather confusing story.

Sunday, November 24, 2024

We are unlikely to be in this universe, new study finds. Multiverse falsified?

According to the multiverse theory, we are likely to find ourselves in a universe particularly suited to the emergence of life. According to a new paper, though, that’s not the case given how it’s expanded over time. But does that mean the multiverse theory has also been invalidated? Let’s take a look.

Thursday, November 21, 2024

Webb Falsified Dark Matter Prediction – And No One Cares

Data collected by NASA’s James Webb Space Telescope is in conflict with predictions based on the hypothesis of dark matter and instead confirmed predictions made with Modified Newtonian Dynamics, MOND. While the failure of dark matter has been widely discussed as galaxies that are “too big” or “too old”, little has been said about the success of MOND. In a paper that just appeared, we have an excellent summary of the present situation, and it doesn’t look good for dark matter at all.

Sunday, November 10, 2024

Why Our Dreams of a Final Theory Might Remain Dreams

For decades, scientists have been looking for a theory of everything, which can combine Einstein’s theories with the standard model while also explaining all masses and interactions within the standard model. In this video I explain why I have become convinced that such a theory does not exist.



This video comes with a quiz which you can take here:

Friday, November 08, 2024

My problem with the black hole information loss problem

This is a response to some comments on my recent video about the black hole information loss problem.

Monday, November 04, 2024

The crisis in physics is real: Science is failing

In which I apologize that my videos sometimes lack nuance and explain why I think we are witnessing the failure of science.

Sunday, November 03, 2024

Did the Black Hole Information Paradox just Disappear?

Do black holes destroy information? Physicists have been trying to answer that question for decades, because the idea that black holes could irreversibly destroy information is incompatible with the principles of quantum physics. Now, researchers claim that some information actually can escape black holes, so there was never a problem to begin with. Let’s take a look.

Thursday, October 31, 2024

The Amplituhedron: Why Space-Time Is Not Doomed

Scientific magazines and websites have been raising quite the hubbub about the Amplituhedron, a geometric structure that can be used to simplify calculations in particle physics. They claim that its existence means “space-time is doomed,” or some other nonsense along those lines. Today I will (try to) explain what all this is about.

Thursday, October 24, 2024

This Theory of Everything Could Actually Work: Wolfram’s Hypergraphs

Mathematician and Computer Scientist Stephen Wolfram wants to do no less than revolutionising physics. He wants to do it with computer code that gives rise to all the fundamental laws of nature that we know and like -- and maybe more. Unfortunately, Einstein’s theories of general relativity inherently clash with how computers work. And yet, he and his team might have found a clever way around this problem.

Tuesday, October 08, 2024

The 2024 Nobel Prize in Physics Did Not Go To Physics -- This physicist is very surprised

A quick comment on the 2024 Nobel Prize in physics which was awarded for the basis of neural networks and artificial intelligence. Well deserved, but is it physics?

Saturday, October 05, 2024

This is why physics is dying

In which I get very depressed because I've heard the same nonsense for 20 years and nothing has changed.