S-Bend: Personal Convenience for All of US
Posted onIntroduction Tim Harford in his book, Fifty Things that Made the Modern History,listed the S-bend as one crucial invention . He noted that in 1800’s, as London’s population expanded in number, the city’s system for disposing of human waste became woefully inadequate. The main system used then was cesspits, which were prone to leaking, overflowing […]