Usual screen resolution is set to 72 dots per inch. Assuming that 1 in = 2.54 cm, one centimeter would be 3600/127 dots (about 28) in length. For the caliper applet to work properly on the screen, the visual scale must be larger. As a result, lengths will not look accurate. This applet will still promote the concept of reading Micrometer calipers, even if lengths are larger than normal.
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