Dale's latest activity

It doesn’t. The speed of light is only invariant in the standard inertial coordinates. In non-inertial coordinates the speed of light...

Not the way you mean. The Minkowski metric is diagonal when you choose a particular coordinate chart. But you can also choose a chart on...

Another way to look at it is that it's always possible to pick a timelike vector and three spacelike vectors that are mutually...

A small amount of water in a tube means a small amount of potential energy of water, which means a small amount of work that can be done.

There is a high upward force on the red surface, but there is no immediate volume of liquid available to accelerate that surface...

The force is high and if there is a crack then it will accelerate upwards. However, it will not go very far or get very fast...

Yes, it is wrong to ask that. The rate a clock ticks depends on the reference frame. So asking “which clock runs slower?” is wrong to...

No, it proves you didn't understand both theory of relativity AND answers you've been given. Read them again.

Thanks Dale! Indeed! And in fact I am not surprised: most of the existing physics datasets are either compilations of papers, books...

Cool. I wish you lots of luck. Current LLM's are really bad at physics.

Here is a more realistic image: The main thing wrong with this image is that it is 2D and this kind of motion happens in 3D, and also...

On average that is true. So the numbers 0.188, 0.268, and -0.456 are randomly distributed from a standard normal distribution, but none...

I don’t think those images are good. They give the impression that every molecule is going outward from a single point. They also give...

If I understand your question then the answer is no. Instead, what you can say is that you have equal probability for V1 and V2...

I don't think so. I explain the Ergodic hypothesis as the claim that 1 system repeatedly subjected to the same experiment a million...