Is it possible to accurately measure the diameter of a wire, thread, hair with a ruler? Why?
| March 19, 2021 | education
To measure the diameter of a long wire, it is enough to wind it tightly around a cylinder, count the number of turns and measure their total thickness. By dividing this thickness by the number of turns, we get the answer. The situation is similar with thread and hair, it is only necessary that the length is sufficient. You can use a pencil as a winding cylinder.
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