By similar reasoning, the 0 line on the vernier would have to be moved a distance equal to 8/ 25 of a main-scale division to align it with the 8.50 line (before the 40 line, therefore this is the 38.50 line) on the main scale. To align lines 7 and y, the vernier would have to be moved to the left by 1/ 25 of a main-scale division to align lines 6 and 40, the movement would be 2/ 25, and so on. In the figure, line 8 on the vernier coincides with line x on the main scale. This means that the divisions on the vernier scale are shorter than those on the main scale by 1/ 25 of a division on the main scale. In the figure, the vernier scale has 25 divisions, whereas the main scale has 24 divisions in the same length. Vernier calipers are widely used in scientific laboratories and in manufacturing for quality control measurements. It uses two graduated scales: a main scale similar to that on a ruler and an especially graduated auxiliary scale, the vernier, that slides parallel to the main scale and enables readings to be made to a fraction of a division on the main scale. Vernier caliper, instrument for making very accurate linear measurements introduced in 1631 by Pierre Vernier of France. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Britannica Classics Check out these retro videos from Encyclopedia Britannica’s archives.
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