"[...] the gravitational force the Earth exerts on you is canceled out in a freely falling elevator" and "[...] it is impossible to distinguish acceleration from gravity"? Seriously?
Isn't acceleration the result of force? Isn't gravity a force? When you are in free fall you accelerate, gravity doesn't "cancel out"!
General Relativity states that gravity and acceleration are equivalent, so yes, they cancel out. Unless you look outside you cannot tell whether you are in an elevator standing on ground on Earth (1g), or in space accelerating upwards at 1g.
It does because the frame is not inertial. There is a fictitious force “pushing you upward” because the elevator is accelerating downward. The fictitious force pushing you upward perfectly cancels the gravity pulling you downward and you feel no net force inside the frame.
Definitely possible. There are legit VOIP services that will spoof my outgoing caller ID to a different phone number of mine that I have previously confirmed with them.
It depends on which solution are you comparing to. Usually, based on my experience, the total cost will be significantly lower than a similar solution deployed to EC2+RDS.
