Smarter Every Day has a video about the "Dawn of Precision" and "How to measure a millionth of an inch", including mentions of the Whitworth method. https://yo

Smarter Every Day has a video about the "Dawn of Precision" and "How to measure a millionth of an inch", including mentions of the Whitworth method. https://youtu.be/T-xMCFOwllE https://youtu.be/T-xMCFOwllE