Liquid Rope-Coil Effect

The tendency for a falling stream of very viscous liquid to coil like a rope when it strikes a horizontal surface is studied and the building of a “cone” of liquid of considerable height above the surface is observed. It is shown that, although the liquid stream as a whole appears to rotate about the axis of the “cone,” the particles of liquid do not actually rotate about this axis. Variations of the liquid rope-coil effect are discussed.