Mike_bb's latest activity

Kind of going back to the original question. To understand why gravity is considered a fictitious force ( I prefer the term inertial...

I should add that there are different versions of the equivalence principle. For something called the strong equivalence principle...

As I said (and I see Peter has also said), it does not do that, so I cannot explain it. If experiment showed that gravity did not obey...

You seem to have a general misunderstanding about physics. It's not about what gravity "really is" according to some "fact" that we are...

He can't because, as he said, it doesn't. The logic is the other way around: if you construct a theory where gravity is a geometric...

Ibix, Could you explain how does thought experiment with elevator lead us to the fact that gravity is geometric property (not the...

No. It is possible to construct theories in which it may differ. For example, ##F=GkMm/r^2##, where ##k## depends on the materials...

I personally think that GR's explanation of why ##M_i=M_g## is one of the most intellectually satisfying things in physics.

Give yourself time to think about it. GR is a profound change in our thinking.

FactChecker, In Russian sources I read another explanations. It confuse me.

There could have been some reason for ##M_i=M_g## other than GR, but nobody could come up with one. It was a mystery until Einstein...

I would call it a satisfying consequence of General Relativity. GR explains the mysterious reason behind ##M_i=M_g##, not the other way...

General Relativity hypothesizes that an object, appearing to accelerate due to gravity, is simply moving in a non-accelerated straight...

No. But the current understanding explains why the exact same mass is appropriate in both equations. That is one of the strong points of...

From ##M_i=M_g## we can conclude that gravity is fictitious force. Right?