Recent content by Physics4Funn

I am sorry Vanadium. Did you want a reference to somewhere in a paper? I haven't found any of Eric Ling's papers online yet. So a zero metric = (0,0,0,0)? Is it just a simple fact like 0=0? Is it just an imponderable like 'What is infinity?' I haven't heard before of anyone considering what...

Eric Ling, Rutgers University, “Spacetime extensions of the big bang” http://causal-fermion-system.com/wp-content/uploads/2021/02/abstract-ling.pdf is the seminar. Other references were mentioned in the talk, but I didn't catch them, and I haven't yet re-watched the seminar to pick them out.

I know about these metrics Euclidean metric Einstein manifold Riemannian, pseudo-Riemannian manifolds or Riemannian space Lorentzian manifold Minkowski space Kähler manifold Schwarzschild metric Kerr, Kerr–Newman metrics Reissner–Nordström metric inverse or conjugate or dual metric Induced...

This paper is new to me, but I know that this idea not new. Another scientist has been working along these lines since 2000. I can usually talk to grad students about new techniques for work beyond the standard model, but I have not found many working physicists willing to even discuss these...

1. In Newtonian physics, F = ma describes exactly describes mass m at an exact point x, a force F, and acceleration a by absolute and independent x and time t. 2. In quantum mechanics, physics moved to an energy description including a trade off between time and energy. There is uncertainty in...

Sometimes multiplying and dividing by infinity is valid. One method that might work is just take the integral over a finite interval and take the limit as the interval expands to infinity. Another might be to use L'Hopitals rule before taking the limit. One of Feynmann's tricks was to take the...

Yes, those are good points. My point about Hilbert spaces was not that I was certain about them, but rather that people were discussing functions and vector spaces and I suspected that all of the writers might be correct in a more general mathematical structure. Sometimes physicists can made...

An example: a book on the floor. No net force: a pair of forces that seem to disappear. Gravity pulling down. Floor pushing up. Lift the book to the table: work is done on the book. On the table, again no net force: gravity pulling down, table pushing up. Since gravity is conservative, then...

I agree. I thing of circuits as components connected by the wires being simplified neurons/synapses. Since synapses have hundreds of neurotransmitters, that can be used as a form of multichannel information flow. For passive components, resistors, capacitors, there can be only one channel of...

1) and 2), time and velocity are definitely related: v=distance/time. But, especially at the time of creation of the concept of conservative force, time and space were considered completely separate and different. Now that we know that time and space are related, then whole subject can become...

If a force depends on time, then the work done in moving between two points can be different, especially if that path is taken at different times. If a force depends on velocity, similarly, take two different paths at two different speeds, then the work is different. From the history of the...

Lots of good information on this thread. As someone who was a computer science professor for a few years, students mostly want the language that is currently most popular. That's the difference between a coder and a computer scientist. A coder wants a quick class in the most popular language and...

Let's extend JasonRF's comments. Perhaps it might be more precise to consider the space here as a Hilbert space.

I think that, mathematically, a Hilbert space can be finite dimensional. I had never seen a physical system that had a finite dimensional Hilbert space until just a few years ago. But a professor of mathematics writing mathematical physics models started using one to solve new physics problems...

I agree with you. I having been working along these lines for a few years following Felix Finster. I think there are some interesting ideas there. Unfortunately, Finster is in mathematical physics and is being ignored.