Intermediate Simple Machines: Levers
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$9.95
20 Minutes - Color
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In this whimsical program, viewers learn that a lever can be any bar that tips back and forth on a point and that a lever exchanges distance for force, or force for distance and speed. Applications in many devices and body parts are depicted in an amusing series of clever illustrations. “An ideal introduction to simple machines... successfully balances appeal, clarity and substance.” — Science Books & Films.
12 Minutes | Color
In this whimsical program, viewers learn that a lever can be any bar that tips back and forth on a point and that a lever exchanges distance for force, or force for distance and speed. Applications in many devices and body parts are depicted in an amusing series of clever illustrations. “An ideal introduction to simple machines... successfully balances appeal, clarity and substance.” — Science Books & Films.
12 Minutes | Color