The official discovery of element-43 is accorded to Emilio Segrè and co-workers. Technetium, as they called it, was the last of elements 1-92 to be tracked down, and in fact it had to be ...

A teacher at Drakensburg Secondary School in South Africa is under investigation for allegedly cutting off a Hindu student's religious thread. The South African Hindu Maha Sabha has condemned the ...

We present a fully quantum model for the excitation of a bound electron based on the “free-electron bound-electron resonant interaction” (FEBERI) scheme. The bound electron is modeled as a quantum two ...