Series of Inclined Planes

This scheme is of English origin, and was promulgated in 1864. The name of the inventor is unknown, but he described his invention in a communication to a scientific publication in the following language:

The accompanying diagram represents a series of inclined semi-tubes connected together in the form of a rectangle.


The ball A, is placed at the top of an incline in such a position that it shall descend to B, at which point it will have sufficient velocity or gravity to carry it up the ascent to C; and so supposing the inclines and ascents to be endless, the repetition of the movement must be also endless. I think it is not unreasonable to suppose that a perpetual movement of the ball will take place, from the fact that the velocity imparted to it by its first descent is sufficient to carry it from A to C, those two points being at the same level. I think the only thing to guard against is the ball rushing over the point C, and thus accelerating the velocity at each descent. The incline on road upon which the ball runs can be made either circular, square, octagonal, or, in fact, almost of any form.