Levers, Beakmania & Television
Actors
Alanna Ubach , Mark Ritts , Paul Zaloom
About
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Story
Taking a question from a student puzzled by levers, Beakman uses a teeter-totter and a large boulder to explain how these simple machines work. Noting that there are first, second and third class levers, Beakman goes on to describe their essential parts -- the fulcrum, the resistance and the effort -- and why their relative positions determine how levers are classified. Then, with help from Lester and Josie, he demonstrates some common levers used everyday -- pliers & scissors (first class), wheelbarrows & bottle openers (second class), and hammers & golf clubs (third class). In "Beak-Mania," Beakman reveals the length of the longest tapeworms (32 feet), the amount of electricity it takes to operate the human brain (10 watts), and the number of teeth in a snail (up to 25,000). For the "Beakman Challenge," Lester is asked to balance a pair of forks on the tip of a toothpick. Puzzled with this seemingly impossible task, Lester watches as Beakman connects the forks and sets them atop a ...
