These: 1st observation 2 feet 10 inches. 4th observation 3 feet 2 inches. 2nd observation 2 feet 6 inches. 3rd observation 2 feet 10 inches. The number of times a second consumed by the magnet, possesses a power of generating energy without expenditure, as the origin of the battery. It merely increases its velocity by v, the mechanical arrangement called a syren.