Archimedes famously said that if you gave him a lever long enough, he could move the whole world. And in 250 B.C. he was in fact challenged by the king to prove his claim—and he pulled it off. One man with a system of levers and pulleys was able to relocate an entire ship—the largest transport ship of his time fully outfitted, including crew, from shipyard to sea. He was using the same tools anyone... read more ›