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Module: Vernier Calipers
Vernier Calipers

The modern vernier caliper, which reads to thousandths of an inch, was invented by American Joseph R Brown in 1851. It was the first precision measurement tool that was priced reasonably enough for most machinists. The ability to make precise measurements was instrumental in producing modern interchangeable parts.

This module takes 30 minutes to complete. At the end of this module, you must obtain an 80% or higher on the Test Your Knowledge for it to be marked as complete. You have unlimited attempts and the highest attempt is recorded.