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TIL That a Panopticon is a specifically designed jail that allows all prisoners of an institution to be observed by a single security guard, without the inmates knowing whether or not they are being watched.

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e0pLL TIL that Thomas Jefferson believed mastodons still lived somewhere in the West and instructed Lewis and Clark to look for one
16Rb8 TIL Astronaut Ronald Evans holds the record of more time in lunar orbit than anyone else in the world: 147 hours, 48 minutes. Evans had to perform a space walk on the trip home from the Moon in order to retrieve three camera cassettes outside the spacecraft
4Xxlg TIL there is a Jeff Goldblum day every July 13th in Pittsburgh
PxDn TIL that Ron Jeremy has a masters degree in special education
5V1D9 TIL the echo effect used in Duane Eddy’s 1958 instrumental hit “Rebel Rouser” was achieved using a 2,000-gallon water tank the studio had purchased from a junkyard