...thus shown that water behaves in exactly the same manner, whether the channel is, as in Poiseulle's experiments, of the size of a hair, or whether it...the motion of treacle in such streams as we see is below its critical velocity and the motion is steady. But if nature had produced rivers of treacle...

...order that the motions may bo compared, the velocity mnet bo inversely as the diameter of the pipe. But this is not the only point explained if we consider...water. This, however, is only in smaller channels ; the critical velocity increases with the viscosity of the fluid. Thus, while water in comparatively large...

...order that the motions may be compared, the velocity must be inversely as the diameter of the pipe. But this is not the only point explained if we consider...water. This, however, is only in smaller channels ; the critical velocity increases with the viscosity of the fluid. Thus, while water in comparatively large...

...thus shown that water behaves in exactly the same manner, whether the channel is, as in Poiseuillc's experiments, of the size of a hair, or whether it...sinuous, the motion of treacle in such streams as we sec is below its critical velocity and the motion is steady. But if Nature had produced rivers of treacle...

...order that the motions may be compared, the velocity must be inversely as the diameter of the pipe. But this is not the only point explained if we consider...water. This, however, is only in smaller channels ; the critical velocity increases with the viscosity of the fluid. Thus, while water in comparatively large...