Define the Principal
focus
of
Converging lens

When parallel rays of light pass through a convex lens(Converging lens) the refracted rays converge at one point called the principal focus.

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.