What tools are used to measure distances?

People have come up with many different tools for measuring distances: rulers, measuring tapes, tape measures, calipers, pedometers, odometers. The rulers are convenient for measuring small straight objects, with the help of measuring tapes you can take measurements to build patterns, the vernier caliper allows you to take measurements with greater accuracy than other instruments. Pedometers are special devices or smartphone apps that use GPS data to measure the distance traveled by a user. Odometers are devices that measure the mileage of a car.

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