Show I I The Reason eason W I-I I SCIENTIFIC FACTS APPLYING TO QUESTIONS YOU SI SH ABLE TO ANSWER I WHY DOES A STICK APPEAR TO BEND WHEN PUT IN WATER When light passes from one medium to another as for example from glass or water to air all or from air or glass to water the tIie rays of light change their course thus making them seem to be bent or broken The rays of light from the part of ot the stick in the water take a different direction from the rays from the part which is out of the water givIng giving giving ing the appearance of breaking or of I bending at the place where the air and water meet It is of course the light rays which are bent and not the ob object object object ob- ob itself This bending or changing of the path of light rays Is called refraction If It I you place a coin In a glass of water so that It may fie te viewed obliquely you youcan youcan youcan I can apparently see two coins coins coins-a a small I one through the surface of the water and another apparently magnified through the side of the glassI glass This is due only to the absolute principle principle prin- prin c ciple pie that rays of light change their I direction in passing from one thing to another and on this principle of th the rays of light our optical Instruments I including the microscope the telescope the camera and eyeglasses are based |