Page:On the various forces of nature and their relations to each other.djvu/42

38 It is an experiment which appeared very wonderful to me when I was a boy; I used to take a piece of cork (and I remember, I thought at first that it was very important that it should be cut out in the shape of a man; but by degrees I got rid of that idea), and the problem was to balance it on the point of a stick. Now, you will see I have only to place two sharp-pointed sticks one on each side, and give it wings, thus, and you will find this beautiful condition fulfilled.

We come now to another point:—All bodies, whether heavy or light, fall to the earth by this force which we call gravity. By