Awesome Inventions

Curiosity will eventually lead to innovation. Fortunately we are an imaginative species who does a lot of wondering.

Way back to when man first learned to walk upright and began communicating with each other, by pointing and shouting, we can find the earliest examples. Somebody once thought, 'I know, we can move that heavy rock, or dead buffalo, by rolling it along on tree trunks because it is easier than dragging it over the ground.'

This, of course, led to the wheel. It must have been ar...