Description
Exploring the laws of nature has rarely been more fun! With the help of this potato cannon, you can shoot potato projectiles at over 40 km/h. Press both ends of the tube into a large potato, push one piece of potato against the other with the stick - and BOOM - the front potato projectile flies off at an impressive speed.
After hearing stories about young people being seriously injured by potato cannons filled with flammable gas, Andreas found the solution. With the help of this potato cannon, you can shoot pieces of potato far away, without putting yourself or others in great danger.
But the fun is still there! Most people who have tried this are hooked after a few minutes.
Press each end of the tube into a large potato and use the rod to press one piece of potato towards the other. The air that is trapped between the two pieces of potato now has less space. The air pressure becomes higher, and when it gets high enough it overcomes the friction that holds the front piece of potato in place. With a sound that makes most people smile, the potato chunk pops out of the tube and shoots through the air so quickly that it can be difficult to see.
Boyle's law states that volume and pressure are inversely proportional when the temperature is the same. Think about that as your potato piece flies over the roof.
NOTE: This potato cannon is harmless compared to potato cannons that use flammable gas. But there is always a risk when something flies quickly through the air. The potato cannon should therefore only be used by children over the age of 14, under the supervision of an adult. Never aim at people close to you, nor at people far away unless they are wearing safety glasses.
You will receive one potato cannon in two parts: A transparent, acrylic tube (50 cm) and a special rod with a damper (55 cm). You have to get the potatoes yourself, the bigger the better.
We strongly recommend that you wear safety glasses when using the potato cannon.
What can you learn? This is a nice demonstration of Boyle's law, kinetic gas theory and Newton's laws of motion. But first and foremost, it's a lot of fun.