05. 1.21 Gigawatts!

1.21 Giggawatts!

Great Scott! Is this the speed of an airplane, moving train or the time it takes to toast a bagel? The answer is D) None of the Above.

You would know what this is if you knew what one of the best cinema masterpieces of all time is – Back to the Future. The correct answer is:

Main Entry: giga·watt
Pronunciation: \ˈji-gə-ˌwät, ˈgi-\
Function: noun
Date: circa 1962

a unit of power equal to one billion watts