Question

what is vernier callipers?why it is so called?​

Answer 1

Answer:

While calipers are the most typical use of vernier scales today, they were originally developed for angle-measuring instruments such as astronomical quadrants. In some languages, the vernier scale is called a nonius after Portuguese mathematician, cosmographer Pedro Nunes (Latin Petrus Nonius, 1502–1578).

Answer 2

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•  A Vernier calliper is a slide calliper with a Vernier scale on it. That scale allows for much more resolution to be achieved in readings. The name comes from one Pierre Vernier.