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Technology, Science & Alt Science / Re: Clarification on Gravity
« on: August 12, 2008, 09:26:10 PM »Umm - do you people realize that the actual effects of gravity can be measured quite closely by the simple expedient of hanging two masses in a vacuum from a slim wire, and measuring quite carefully the torque on the wire from a third mass? You can actually calculate G from just that.
If it were an inertial frame issue, that wouldn't work. We - like, did it in High School. guys.
CD
Does this have anything to do with the subject of this thread?
The subject of this thread is a statement that Gravity is an illusion cause by inertial frame of reference.
Since that experiment would fail if that were the case, it seemed to me to be relevant.
So that experiment proves Einstein wrong? How?
It doesn't - Einstein proved that it was impossible to distinguish via physical phenomena acceleration from gravity - they have the same effects.
However, that is not the same as saying that there *is* no such thing as gravity: If there were, the only way to reproduce the torque experiment (It has a formal name but I don't recall it at the moment) would be to introduce angular momentum into the system. However, since the torque is created simply by introducing a third known mass into the experiment, that fundamentally disproves the thesis.
Acceleration reproduces the effects of gravity, as predicted by Einstein, however straight line acceleration has verifiable effects that would be different from gravitational effects - there would be no (For instance) gravitational gradient within a system undergoing straight line acceleration.
CD