Mr. Wizard's World

Ultrasonic Cleaner, Manhole Covers, Jar over Candle, Bicycle Gears, Oysters, Balloon Bottle and more (3x4)

Date de diffusion: Jan 03, 1986

Ultrasonic Cleaner, Manhole Covers, Jar over Candle, Bicycle Gears, Support and Balance, Harvesting Oysters, Balloon into a Bottle. ULTRASONIC CLEANER - Mr. Wizard and Christian discuss supersonics and ultrasonics. Several demonstrations ensue. MANHOLE COVERS - You've seen manhole covers on the street many times.