Astronomy Cast Ep. 370: The Kaufmann-Bucherer-Neumann Experiments

One of the most amazing implications of Einstein’s relativity is the fact that the inertial mass of an object depends on its velocity. That sounds like a difficult thing to test, but that’s exactly what happened through a series of experiments performed by Kaufmann, Bucherer, Neumann and others. (...)Read the rest of Astronomy Cast Ep. […]