Train riding down track. Art deco Elevator door closing. Round saw cutting through wooden board. Galvanometer responding to electromagnetic experiment. Man operates small electromagnetic contraption, lighting a lightbulb. Wheel of spoons spins under running water. LS of water falling down dam. Power lines and exterior of suburban home. Electrical outlet and lamp being turned on. Toaster toasting bread. CU of radio, sewing machine, fan, can opener, vacuum cleaner, hair trimmer, shoe polisher, washing machine, blender, electric toothbrush, drill, and film projector.