THE ENERGY IN THE MILL GOES ROUND AND ROUND
by Jnana Hodson
Energy transferred from running water powered New England manufacturing via arrangements of pulleys, shafts, gears, and leather belts, especially.
Leather, flexible as it was, could be prone to breaking, and so special techniques for splicing and connecting the strips into loops developed over the years.
When everything was running, by the way, the interior of a mill could be surprisingly noisy. The whole building would shake.