Herman Trivilino's latest activity

A.T. gave an excellent answer in post #2, but perhaps the original question was even simpler than we made it: if a clock moves fast...

It depends what you mean by "slowly". If you mean "if I, at rest on the ground, were to take a series of close-up pictures of the fast...

Nope. Just nope. Pushing the water through faster, even if it produced water, the water would not be filtered.

A lightning bolt can be many kilometres long as well as reach high altitudes. There is sound transmitted through the ground as well as...

I'm not sure I like the metaphor of "standing above their pupils", at least in a STEM teaching environment. I've tutored numerous folks...

I can't speak for the OP and I don't know if you're referring to this equation in particular or in general. But this is what I would...

I am late to this thread and may not have a full understanding of the current context of the discussion, but for a general rigid object...

Yes, but not that they are parallel, which was the original statement.

##\vec{L} = \vec{r} \times \vec{p}## does imply the relationship between the directions of ##\vec{L}## and ##\vec{\omega}##. So the...

Yes, but ##\vec L = \vec r \times \vec p## does not imply that angular momentum is parallel to angular velocity so the latter cannot be...

But even in those cases the direction of ##\vec{\omega}## relative to the direction of ##\vec{L}## is a consequence of the definition...

Note these are consequences of the definition of angular momentum: ##\vec{L}=\vec{r} \times \vec{p}##.

That's a common misuse of the terminology. We refer to a rest frame as a frame of reference in which something is at rest. So the...

By spindle "changing" you mean ##\vec{\omega}## of the rotating object changing direction? Then, yes.

That follows from the definition of angular momentum. He states "torque due to gravity". So you don't see that a torque by definition...