Question

"It is simply this. That Space , as our mathematicians have it, is spoken of as having three dimensions, which one may call Length , Breadth , and Thickness, and is always definable by reference to three planes, each at right angles to the others . But some philosophical people have been asking why three dimensions particularly r|y-Why not another direction at right angles to the other three? — and have even tried to construct a Four - Dimension geometry " WELLS, H. G. The time machine. Nova York: Browntrout Publishers , 2013. p. 43. Esse texto usa o verbo to be em sua forma de "simple present " para indicar :

Answer 1

Resposta:

A - Descobertas científicas

: