Recent content by MikeGomez

Discussing religion is not allowed on these forums. You could have ended the post with that, yet you smuggled in a positive position on the subject which I take offense to. You are telling the public that they should not care. How about we change the subject from religion to beliefs in general...

Yes, it would be nice if logic and critical thinking were taught from an early age. Unfortunately, that is in general not how people are taught from an early age. In today's world people are much more likely to be indoctrinated into superstitious belief systems at an early age. David Hume said...

You say GR describes the gravitational interaction, but I've read that mathematically "gravity" and "inertia" enter the EFE's in the same way. In any case, aside from experimental evidence as well as the mathematics, we also have Einstein's view there is no difference between gravitation and...

Wikipedia states "Although some theorists have speculated that some of these phenomena could be independent of each other, current experiments have found no difference in results regardless of how it is measured:" I agree that there is very little hope for such speculation. Eotvos performed his...

Right, but he point wasn't about a two body system. It was that the planet is accelerating in all directions at once. Instead of an apple, it could be a dust particle or smaller, or I think at least in principle an infinitesimally small point in spacetime. The surface of the planet still...

Clocks tick at a faster rate at the top of the accelerating rocket ship than at the bottom, identically to an equivalent situation on earth. The reason this has nothing to do with curved spacetime is due to the definition of curved spacetime, not the definition of acceleration or inertia.

I think that inertia is more than "just" a fundamental property of matter. In the view of General Relativity, an apple does not fall to the ground. The ground accelerates towards the apple, and even though the surface of the planet is accelerating in different directions at different...

I thought this is thread is a discussion about a video by @ScienceClic. Could you please clarify what exactly is off topic here? Specifically I was interested to hear what @D.S.Beyer finds to be dubious in another video that he mentions which visualizes 4D space-time .

I couldn't figure out how to edit the post, but let's say for example that it were spun up by using rocket engines attached to it. In that case the change in angular momentum is balanced by considering the momentum of the exhaust of the engines. But from the reference frame of the bucket...

I think that is accurate. Although, as Feynman famously said "physics describes the behavior of nature, it doesn't answer 'why' questions", the question on the origin of inertia is still interesting for some people.

I don't recall stating a model, but if you say I did then I must have. I didn't mean to imply non-conservation of angular momentum. If you point out to me where I said that, then I will edit in a correction. Yes.

I have a question about a way of avoiding the rotating universe rabbit hole when discussing local inertial effects as conditioned by mass (energy) globally. Isn't is possible to instead imagine a large, extremely dense, hollow cylinder, fixed at a location relative to the distant stars? The...

Apparently I have confused being in different gravitational potentials with change of gravitational potential. Thanks for clearing that up.

Yes. Just curious. Does this also lose the distinction between proper acceleration and coordinate acceleration? I think of it in a contrary manner to that, i.e. the fact that two clocks in flat-space initially at rest with respect to each in an inertial frame requires acceleration (in one...

No acceleration would mean no age differential. The twin paradox is a thought experiment involving two participants. One twin accelerates and the other does not. The traveling twin accelerates away from the stay at home twin, then re accelerates to switch from outbound to inbound direction...