The Stern-Gerlach experiment provided evidence for spatial quantization. However, the number of discrete images on the screen did not agree with theoretical expectations at the time. This dilemma is resolved by the existence of:

The principle that the geoglical processes that we see today have occurred through out earths history is called

10. a driver should evaluate the condition of the intended driving path as being

Atraffic cop has pulled over a speeder, only to discover that he has stopped a close friend. the police officer is torn, because his professional obligations demand that he punish the speeder, but his personal obligations suggest that he should give a friend a break. what is this called?