Vernier scale
Learning objectives
- To teach how to read a vernier.
The vernier (Pierre Vernier - Mathematician - 1580-1637) is used in length measurements to gain an additional digit of accuracy compared to a simple ruler. Two rulers are attached, but one can slide over the other. On the sliding one, 10 graduations corresponds to 9 graduations on the fixed one (on a vernier calibrated in tenths).
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