When I finally got my own set of Gage Block, I finally deeply realized how important they were/are to worldwide precision product design.
I would like to add "measurement" to high precision as well to these lists. Our ability to do accurate measurements allowed observation of phenomena otherwise hidden. (e.g. with a 4.5 digit DMM, you'll get a solid, stable reading. With a 9-digit DMM, you'll see a 'random walk' in the LSDs - caused by all sorts of interesting phenomna)
I would like to add "measurement" to high precision as well to these lists. Our ability to do accurate measurements allowed observation of phenomena otherwise hidden. (e.g. with a 4.5 digit DMM, you'll get a solid, stable reading. With a 9-digit DMM, you'll see a 'random walk' in the LSDs - caused by all sorts of interesting phenomna)