On our journey to self-reliance, my husband, Darren, and I have been gathering human-powered tools when we can find them. It’s surprising and sad how quickly hand- and foot-powered tools were junked when electricity became available. From 1850 to 1890, more than 100 apple-pealing devices were patented. Then none, except those running on electric power. And so it goes with thousands of other nifty human-powered appliances.