Progress is fine, but it's gone on for too long.

 Above, parts of the micrometer. below, the first micrometer made by Jean Palmer of France in 1848, as brought back to the US by Joseph R Br...

 Child-Life Arithmetics 6 by Breed, Overman & Woody, 1936. Oneletterwords  Wasn't the future womderful?

  Why doesn't everyone know this?

  I'd probably have more fun with these at retirement age than I would have as a kid.  

John L Feirer Earl Tatro, Machine Tool Metalworking, McGraw Hill 1961  

1917 Powerplus  

 The first and ubiquitous worm drive hose clamp invented in 1921 by Commander Lumley Robinson of the British Royal Navy. Usually made from s...

 11,000 miles? I'm sure I don't get that from my modern motorcycle tires.

  This unusual hammer is a log marking hammer. Back when there was a logging industry, the logging company and sawmills had to keep track of...

 This British aviation magazine featured modern developments and current events as well as historical subjects over the years. It went throu...