If you study jerks in a formal way, you are probably familiar with jerkmeters. Here’s a comforting treasure, the 1966 patent for one of the most beloved of all jerkmeter designs: 3,230,777 JERKMETER. Jacob Chass, Philadelphia, Pa., assignor, by mesne assignments, to Robinson-Halpern Company, West Conshohocken, Pa., a corporation of Pennsylvania Filed Dec. 17, 1962, […]
Tag: force
A phony force experiment, revolving around children
Centrifugal force, which is (technically) a phony force, is at the center of this experiment about spinning children. The video presentation is of the sort known as “spinning a yarn”: (Thanks to investigator Laura Bassett for bringing this to our attention)
Duck Big Bang Inflation Force Measurement Project
This biology project, called “Force of Duck: Measuring explosive erection“, has a fun fundraising video, and (see the text below the video) speaks for itself, eloquently: A duck pond in the breeding season is like a singles bar on steroids — rife with sexual conflict. Males and females pair off, but male ducks also force sex […]