Page:On the Continuity of Effect of Light and Electric Radiation on Matter.djvu/11

164 there we have partial recovery between quickly recurring flashes, and there is thus observed a fluctuation about the balanced position. Now

when the intensity of radiation is increased by decreasing the distance of the radiator to 25 cm. (see b), the strain effect persists for a little longer time, and the flashes arrive before the substance can recover to any extent; thus there is less fluctuation in the balanced position.