Swarf is the metal filings, grit, or powder left by grinding and other machine work, the stuff Martin in Bostonia, California, saw on a safety sign warning workers to “Beware of coolant and swarf.” The word also has a verb use, meaning to cover...
The name Jacuzzi comes from the Jacuzzi family, seven Italian brothers who emigrated to California and opened a Berkeley machine shop in 1915. Their work included propellers and irrigation pumps, and one pump became personally important when Candido...