A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 129
es, then one with A and C as sides. Compare thelength and direction of the line C with the length and direction ofthe diagonal of the parallelogram AB; the line A with the diagonalof the parallelogram EC; the line B with the diagonal of A C. From a study of the Exercise make a rule showing how to… … FIG. 67. appears to be close to LI and parallel to it. Then a pencil-mark ismade along the edge op. A better method is to set the edge op on the line LI and then guidethe block to a new position by sliding it along the straight edge of aruler at right angles with LI. THE PARALLELOGRAM OF FORCES.…
Physics
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