The apparatus used in the Stern Gerlach experiment is somewhat like the one shown below with magnetic pole pieces of different shapes producing an inhomogeneous magnetic field. But what would have happened if we had used symmetrical pole peices which produced a near-homogeneous magnetic field? Ba...

Some of the "smaller" black holes have a mass of 4-15 suns. But still, they are black holes. Thus their gravity is so big, even light cannot escape. Shouldn't this happen to some stars, that are even more massive? (mass of around 100 suns) If their mass is so much bigger, shouldn't their gravity ...