Can you give an example showing that the force of acceleration due to Gravity leads to consequences which are different from the acceleration due to a real change of velocity of a mass ?
A. – Let us compare the consequences of Inertial and Gravitational Accelerations. Consider a mass standing on the surface of the Earth. After one year, the mass submitted to gravitational acceleration is always standing there, without changing its energy or velocity. Let us also consider another identical mass, submitted to an inertial acceleration of one G in outer space due to the push of a rocket. After one year, the enormous energy given to the mass is such that its velocity has reached an important fraction of the velocity of light. If that mass falls on Earth its energy produces a gigantic crater on the impact. Einstein’s theory claims that these two phenomena are equivalent and indistinguishable. This is non-sense. Any scientist should be able to see the difference. In order to convince people, Einstein adds that there is no difference for the observer located in the moving mass’ frame of reference. In order to illustrate Einstein’s argument, let us consider another case in whic
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