The principle of superposition states that... Within a sequence of undisturbed sedimentary or volcanic rocks, the layers get younger going from bottom to top. It can be used for relative age dating ...

Wouldn't it be fascinating to live in New York and London at the same time? In the standard of everyday life, this is equivalent to daydreaming or sheer fantasy. Nevertheless, this is a perfectly ...

The physics of the microrealm involves two famous and bizarre concepts: The first is that prior to observation, it is impossible to know with certainty the outcome of a measurement on a particle; ...