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SOUND ON A LIGHT BEAM – Mr. Wizard tells Stacey she is going to send sound over a light beam! He shows her a record player with sound coming from the speaker. The sound is recorded on the grooves. Watch as he shows her how to transmit sound over a beam of light. OPTICAL ILLUSION - Mr. Wizard shows Darren a line drawing of a 3D table and asks him to fit a real disk on the top of the drawing. The disk doesn’t seem to fit because the table is not square as perceived. Mr. Wizard explains. WIRED HOCKEY PLAYERS – Mr. Wizard narrates: At Michigan State University, Dr. John Downs, team physician for the ice hockey squad, set up a program to find out the keys to the players stress by wiring their chests with electrodes that measure the activity of the heart. BALLOON & MARSHMALLOW IN VACUUM - Mr. Wizard and Nicola create a vacuum under a bell jar with a vacuum pump. They place marshmallows inside the jar. They expand as the pressure is lowered. When the pressure is returned to normal, the marshmallows collapse. MERRY-GO-ROUND WATER DRAIN - Mr. Wizard demonstrates to Jason when water goes down a drain in the Northern Hemisphere in rotates clockwise and counter clockwise in the Southern Hemisphere. He uses a playground merry-go-round to make his point clear. HOLE IN BOTTLE - Leila guesses that when a hole is made near the bottom of a plastic bottle, the water will spurt out about halfway across the sink. She punctures the bottle and is surprised to see that no water comes out of the hole. Mr. Wizard points out that no water can come out because no air can get in. When she pokes a hole near the top of the bottle, she predicts the water will dribble out of it. Instead, the water spurts out the bottom hole and bubbles indicate air is entering the hole near the top of the bottle. DIAMOND FIND - In Arkansas go to Crater Diamond State Park, the only diamond field in North America. It's similar to those in South Africa, but smaller. Pay an admission fee, start digging, and you, too, may find a diamond. ALUMINUM FOIL CLEANS SILVER - To clean silver, AJ puts a teaspoon of baking soda in a pan of water on the stove. He then adds a teaspoon of salt and stirs. Mr. Wizard explains placing the aluminum foil at the bottom of pan and dipping a tarnished spoon partly into the liquid. The chemical reaction will remove the silver sulfide from the spoon and deposit it on the foil. It instantly cleans the tarnished silver spoon.
Cast & Details See all »
- Premiered: January 8, 1989
- Rating: None
- Premise: A sitcom set in a South London barbershop frequented by West Indian immigrants, some more assimilated into British life than others. It was a hit in England, and ended only when star Norman Beaton died in 1994. (more)