Catapult ball
- 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
Shooting Ball/Launch - Science Museum Exhibits Program
What It Shows
The exhibition items have two sets of connected acrylic pipes, one is a thick pipe and the other is a narrow pipe. There is a spherical ball that can be pulled up and down in the thick tube, and a lightweight ball inside the narrow tube. The narrow tube is equipped with a funnel-shaped protective net and a layer of barrier net. source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. When prompted to participate, participants pull the rope to lift the round ball in the thick tube to a higher position. Release the rope, the ball quickly falls down, and the air pressure inside the tube instantly increases. The air is forced into the narrow tube, pushing the ball upwards and ejecting it. When the ball hits the barrier, it falls back into the narrow tube along the funnel-shaped protective net.
Science Behind It
According to the formula of the ideal gas law, when the temperature remains constant, the pressure and gas volume are inversely proportional, and the smaller the gas volume, the higher the pressure. source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. In the exhibition items, when we release the rope and cause the top disk to quickly fall, the air pressure inside the thick tube instantly increases, forcing air into the narrow tube and pushing the ball upwards, causing it to bounce up. source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. Remind everyone that when the ball hits the barrier, it will fall back into the narrow tube along the funnel-shaped protective net.
How to Take Part
1. Pull the rope to lift the round ball in the thick tube to a higher position;
2. Release the rope and let the disc fall quickly, observing the movement of the small ball inside the narrow tube.
form of expression
Mechanical interaction
video demonstration
