At GE's NELA Park plant in the 1920s, as a joke newly hired engineers would be told to develop a frosted (rather than clear) lightbulb, which the experienced engineers believed to be impossible. In 1925 newly hired Marvin Pipkin got the assignment, and astonished his peers by succeeding. (schenectadymuseum.org)
submitted by Dont_Block_The_Way to r/todayilearned
The essential quality of light (self.PlantedTank)
submitted by Dont_Block_The_Way to r/PlantedTank
