>>11875396the ballpoint pen
safety match
the transformer
Kalman filter
automatic gearbox
origins of the electric motor
thermonuclear weapons
telephone exchange
washing hands before surgery
vitamin C
foundations of modern computer science (Neumann)
the economic lightbulb
holography
AC electric railway traction
modern aerodynamics (Theodore von Kármán)
turboprop engines and gas turbines (Jendrassik)
modern diesel engines (Anisits)
these are just my favorites, there is a lot more if you bother to look