Physical Experiment Movable Pulley Dynamometer Technology Ergograph

Description:

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- Happy and easy to learn

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- Exercise your children practical ability

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- Train your children observation capability,thinking and analytical skills

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- Learning Points: Fixed pulley, movable pulley concept. Why the fixed pulley can not save effort, but movable pulley can save effort?

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- Explanation: With movable pulley can save a half power, fixed pulley is a Lever arm, no save effort nor effortless, but it can change the direction of force Size Chart:

17*9*2cm

Package Includes:

1 Set DIY Pulley Dynamometer Kits(11pcs)

Note:

Due to the hand measurement, there have size error about 1-2cm

Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same