g a table of natural sines the cosine of 12 degreesis found to be 0.97815, which subtracted from i gives 196 THE MODERN CLOCK. 0.02185 as the versed sine. Multiplying this by 0.36 inch(practically one-half of our measured 0.732) to get theapproximate radius of the wheel, we get 0.008 inch,… … oi. Cjctting the fuU diameter. mine the value of the correction in question, but we onlyneed to know the radius approximately in order to determinethe correction very closely, an error of 1-20 inch in the as-sumed value of the radius producing an error of only o.ooiinch in the value of the…
Clocks and watches
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