This motion is communicated to m', which describes a very short arc of a circle about a point in AB. The arrangement is so made that when either of the markers m, m' is making a record, it has a motion which may be resolved partly in direction of the... Description of a Chronograph, Adapted for Measuring the Varying Velocity of ... - Page 11 by Francis Bashforth - 1866 - 32 pages Full view -
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