Space starts at an altitude of 100 kilometres. As altitude increases the atmospheric pressure decreases. The is no clear dividing line as to where the atmosphere […]
When the plutonium bomb was tested in New Mexico in 1945, approximately 1 gram of matter was converted into energy. Suppose another bomb is tested, and […]
Joan, a neuroscience graduate student, is asked by her laboratory mentor to study the communication of two neurons grown in a petri dish. she is asked […]