Stomp and Fly air pump rockets are a safe and inexpensive way to kids to learn the basics of forces and fluid pressure.
Pascal’s law or Pascal’s principle of transmission of fluid-pressure, is a principle in fluid mechanics that states that a pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere. When we think of a rocket we generally think of fuel rockets heading off into space. These rockets are powered by fuel and motors, with onboard computers controlling every movement precisely. A stomp rocket has no control, except the direction you point it in and then all its power comes from the initial thrust of the air bladder being “stomped” on. It runs out of power and then will fall to the ground at the whim of gravity.
When the stomping pressure is applied to the air bladder, the air inside is expelled from the bladder. This air has nowhere to go except through the connecting hose and into the body of the rocket. This pressurisation of the air inside the hollow body of the rocket causes the air to once again need to escape, so it is forced towards the only opening at the rear of the rocket. It causes the rocket to accelerate upwards along the launch shaftand then lift into the sky. Direction of flight can be controlled by the angle of the launch shaft tube.
*Wooden parts, paint brush, paints, glue, EVA blades, tube, straw,
screws, tape and stomp chamber
*CHOKING HAZARD: Contains small parts. Not for children under 3 years