Millions of look-alike socks and shoes, pots and pans, toys and toothbrushes tumble out of machines. But before there were machines, people made things by hand. And there are still people who make...
Pot-cleaning plants
When people clean pots and pans, they probably use scratchy pads of steel wool or plastic. But long ago, people cleaned pots with plants called horsetails. Horsetails, also called rushes, are short,...


