There's a second article in their series on mechanical power transmission [1] and a HN discussion from a couple of years ago [2] [1] http://www.lowtechmagazine

There's a second article in their series on mechanical power transmission [1] and a HN discussion from a couple of years ago [2] [1] http://www.lowtechmagazine.com/2013/02/the-mechanical-transmission-of-power-jerker-line-systems.html http://www.lowtechmagazine.com/2013/02/the-mechanical-transm... [2] https://news.ycombinator.com/item?id=5159884 https://news.ycombinator.com/item?id=5159884