It is agreed that the progenitors of neutron stars (-NSs) and black holes (-BHs) should be massive stars with . Yet none of these objects have ever been found w
In this brief note, we adduce the logical rationale that if at least one infinite straight line non-intersecting with the given straight line passes through a g
The ac recombination velocity of the excess minority carriers, in the back surface of a silicon solar cell with a vertical junction connected in series, is deve