Texto II:

What Is Time, Anyway?

Saint Augustine of Hippo, the famous fifth-century theologian, remarked that he knew well what time is – until somebody asked. Then he was at a loss for words. Because we sense time psychologically, definitions of time based on physics seem dry and inadequate. For the physicist, time is simply what (accurate) clocks measure. Mathematically, it is a one-dimensional space, usually assumed to be continuous, although it might be quantized into discrete “chronons,” like frames of a movie.

Scientific American, September 2002: 26

 

Com base no Texto II, diga como o conceito de tempo é definido: (Responda em português)

a) pela Física;

 

b) pela Matemática.