Pull yourself
- In stock with stable lead times — single units or complete sets
- Size, appearance and interaction can be adapted to the museum’s theme
- For science museums, campus science rooms, community science centers and mobile science museums
- Export packing and overseas on-site installation support
Pull yourself/pulley system - Science Museum exhibitions exhibition items plan
What It Shows
Exhibitions showcase the working principle, types, and characteristics of pulleys to the audience through firsthand experience, stimulating their curiosity and interest in exploring science.
Science Behind It
There are two types of pulleys: fixed pulleys and movable pulleys, combined to form a pulley system, which can both save effort and change the direction of force. source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. The function of the fixed pulley is to change the direction of force. The essence of the fixed pulley is an equal arm lever, and the power arm L1 and resistance arm L2 are both equal to the pulley radius. According to the lever balance condition, it can also be concluded that the fixed pulley does not save effort or distance. The movable pulley is essentially a lever where the power arm is twice the resistance arm, saving 1/2 of the force and 1 time the distance.
How to Take Part
1. Sit in the seat and fasten your seatbelt;
2. Pull the rope downwards to lift yourself up;
3. Slowly release the rope and fall to the ground;
4. Compare which of the three sets of seats is easier to lift oneself up.
form of expression
Mechanical interaction
video demonstration
