Mr. Wizard's World

Light Pictures on a String, Pin Piano, Moldy Orange, Word Processing, Meteor Portrait, Wind, and more (2x3)

Air date: Nov 22, 1984

Light on a String, Pin Piano, Moldy Orange, Word Processing, Tree Mower, Mobius Loop, Meteor Portrait, What Makes the Wind Blow, Drawing and Ellipse. Tanis is amazed to see the image of an elephant on a vibrating piece of string. Mr.Wizard explains that light is invisible. We see it only when it is reflected from an object.