The Wedge: Splitting More Than Just Logs

The video explores the legend of George Washington and the cherry tree, using it as a segue to discuss the mechanics of an axe, which is a type of wedge. It explains how wedges work by redirecting force to split objects and identifies common wedges like knives and doorstops. The video also covers the concept of friction, particularly in the context of a doorstop, and highlights the historical significance of wedges as one of the oldest tools used by human ancestors.

What role does friction play in the function of a doorstop?

Why is the wedge considered the oldest simple machine?