Using Archimedes’ Lever Principle to Help Propel a Tractor-Trailer

Archimedes, the scholar and mathematician of antiquity, was quoted as saying, “Give me a place to stand and a large enough lever, and I will move the earth.” That’s debatable, but some pretty big and heavy things can be nudged into motion with a lever – and trailers are among them, says an inventor in Ohio. Tom Berg has the story in his Trailer Talk blog.