Fun Fact May 4, 2021.

Tool time Tuesday and today we’ll see if it measures up.  I’m in the process of designing a tool to help me strip copper wire.  The design currently resides in my mind and a few of the components are in my garage.  I’ve discovered that I may need a micrometer to build my machine.  A micrometer is a device to accurately  measure things, like the diameter of an axel or the inside of the barring that axel will ride in.  Micro means small and meter, from the Greek metron, means to measure.  A micrometer has a calibrated screw which allows for very accurate and very small measurements.  The first micrometers were used in telescopes and were invented in 1638.