Mr.Wizard's World

Season 2 Episode 7

Episode 7

Aired Unknown Mar 18, 1985 on Nickelodeon
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Episode Summary

Episode 7
MODEL ROCKET - Jason, who has launched many rockets with his father, shows Mr.Wizard the various parts of the rocket and how to launch one safely. GLASS BENDING - Mr.Wizard and Tanis discuss the unusual properties of glass. She defines a solid as something that keeps its shape and can't flow. Mr. Wizard tells her that glass is really a liquid that is solid. PLASTIC GLASS PHONE - Mr.Wizard hits a spoon on a string with another spoon. He shows Eugene a plastic glass with a hole in it through which the string is knotted. The glass amplifies the sound of the vibrating spoon. Eugene holds the cup to his ear. They discuss the tin can telephone. Mr. Wizard has made an updated version using plastic glasses instead of tin cans. The plastic vibrates better than the tin cans. GIANT MODEL TRAIN - Southern Pacific's engine number 8799 isn't a train at all, but a giant model train, a simulator that works exactly like a real one to train engineers. TIE KNOT IN ROPE - Stacey holds each end of a rope and is supposed to tie it in a knot without letting go of the ends. Watch as Mr.Wizard shows her this neat trick. GELATIN & BALLOON - Mr.Wizard is rubbing a balloon with a cloth. He puts it next to Tanis's face. The balloon remains there. They discuss static electricity: static means cannot move or stationary. DOT MATRIX PRINTER - Mr.Wizard shows Jason a dot matrix and daisy wheel printer. MARBLE ON PLATE - Stacey rolls a marble along the inside of a paper plate. Mr. Wizard shows her a plate that is cut in half. He asks her to predict where the marble will go if made to roll in the same manner as in the uncut plate.moreless

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