re: #342 jamgarr
Who knows?! I did a trivia night over the weekend and one of the science questions was to name 2 of the 5 greatest technological developments of the 20th and 21st centuries. We said 1) the transistor and 2) powered flight - BUT NO all 5 were stuff like internet, cell phones, etc.
Nobody mentioned heat transfer technology? I don’t think anything beats refrigeration on the significance scale.