Dot planimeter Review / HowTo

A dot planimeter, invented by Steinhaus and Abell (independently) in the 1920s and 1930s. This is episode 54 of my video series about old calculating devices. See the references and download & print your own dot planimeter: http://cstaecker.fairfield.edu/~cstae... Thanks to Dr Grzegorz Graff for helping me find the original Steinhaus paper. End song inspired by "Hotter than a molotov" by The Coup. #steinhaus #pupcake Chris Staecker webarea: http://cstaecker.fairfield.edu/~cstae... Riemann sum graphics by Wikipedia user KSmrq, CC-by-SA-3.0