Mike_bb's latest activity

Well if your ##x## is zero, then you will have no ##a##'s, so just the ##1## in the begining.

Or, more generally, ##a^{n+m}=a^na^m## implies ##a^0=1##, because otherwise ##a^{n+0}\neq a^n##.

It's consistent with ##a^{n+1}=a\cdot a^n##

Hello! I have problem in understanding why ##a^0=1##. I represent ##a^x## as ##1*a*a*a*a*...*a## (x times) Why ##a^0=1##? Why is...

Spacetime curvature is geometric property.

Why not? It just means that you have to redesign your accelerometer. In any case, it doesn’t change the fact that the gravitational...

That is reasonable. However, any quantity that is inferred from motion is relative to the reference frame that defines the motion. Its...

Except that the electric force cannot be always locally transformed away by a frame change, because it's not proportional to mass like...

Spacetime curvature is not an interaction, but a property of spacetime. And it's related to tidal gravity, not gravity itself, which can...

The elevator in space is being accelerated by an external force. For example a rope is tied to the roof of the elevator and pulls on the...

Yes. But in GR you should add the word “local”. Locally gravity disappears because in a local inertial frame the inertial force...

Yes, this the GR interpretation, where the free falling frame is inertial, and gravity is an inertial (fictitious) force. In the...

If we consider free falling frame then we can state that gravity dissappear because in inertial frame the inertial force dissappear. Is...

In GR inertial frame means free falling frame, where a static accelerometer measures zero.

Elevator on the surface of earth is not inertial because the surface of the earth is exerting a real force on the bottom of the...