His spiral horns, twisted for three or four turns like a corkscrew, often reach the length of 30 in.
KUDU (koodoo), the native name for a large species of African antelope, with large corkscrew-like horns in the male, Male Kudu.
3 The lines of force are evidently circles concentric with the wire and at right angles to it; their direction is related to that of the current in the same manner as the rotation of a corkscrew is related to its thrust.
The field at the centre of a circular conductor of radius r through which current is passing is H = 27ri/r, (3) the direction of the force being along the axis and related to the direction of the current as the thrust of a corkscrew to its rotation.
The direction of the force is parallel to the axis of the coil, and related to the direction of the current as the thrust of a corkscrew to its rotation.