I found this link to be pretty interesting read on the topic. Kind of takes the mystery out of it though : ) http://www.lowtechmagazine.com/2010/03/history-of-

I found this link to be pretty interesting read on the topic. Kind of takes the mystery out of it though : ) http://www.lowtechmagazine.com/2010/03/history-of-human-powered-cranes.html http://www.lowtechmagazine.com/2010/03/history-of-human-powe...