Whirling arm and gun mount
Date
ca.1746
Creator
Benjamin Robins (1707 - 1751, British) , Mathematician
Object type
Archive reference number
Material
Dimensions
height (drawing): 296mm
width (drawing): 186mm
width (drawing): 186mm
Subject
Content object
Description
Detail drawings of the drum and weight for the whirling arm, a machine for conducting experiments in aerodynamics and drag [‘resistance of the air’]. With a mount apparatus, possibly for rifle experiments.
The whirling arm’s drum was spun rapidly by a falling weight which in turn revolved an arm (of 4 feet in length) attached to the conical head of the device. Bodies for testing were attached to this and achieved speeds of several feet per second for brief periods.
Benjamin Robins (1707-1751) British mathematician and military engineer was elected a Fellow of the Royal Society in 1727.
The whirling arm’s drum was spun rapidly by a falling weight which in turn revolved an arm (of 4 feet in length) attached to the conical head of the device. Bodies for testing were attached to this and achieved speeds of several feet per second for brief periods.
Benjamin Robins (1707-1751) British mathematician and military engineer was elected a Fellow of the Royal Society in 1727.
Associated place