The Pleasure of Finding Things Out and what lecture on nanotechnology are both authored by American physicist Richard Feynman?
The Pleasure of Finding Things Out: The Pleasure of Finding Things Out is a collection of short works from American physicist Richard Feynman, including interviews, speeches, lectures, and printed articles. The Pleasure of Finding Things Out:  Among these is his famous 1959 lecture "There's Plenty of Room at the Bottom", his report on the Space Shuttle "Challenger" disaster, and his speech on scientific integrity in which he coined the term "cargo cult science". There's Plenty of Room at the Bottom: "There's Plenty of Room at the Bottom" was a lecture given by physicist Richard Feynman at an American Physical Society meeting at Caltech on December 29, 1959. There's Plenty of Room at the Bottom:  In the 1990s it was rediscovered and publicised as a seminal event in the field, probably to boost the history of nanotechnology with Feynman's reputation.
There's Plenty of Room at the Bottom