Mom: "I like this sound!"
Satoshi: "I can shoot well too."
Mom: "Let's compete how far you and I can shoot!"
Satoshi and Mom are shooting pieces of potato from straws.
This potato gun works like a air gun. Compressed air pushes a potato bullet, and consequently the bullet shots out.
Satoshi: "My bullets are flying further."
Mom: "It's so flustrating! Shall we compete for targeting instead?"
We have decided to use toilet paper roll cores as targets. We let them stand on the table.
Mother: "I can't hit targets. It's so difficult!"
Satoshi: "I hit it!"
Mom: "I lost again."
Satoshi: "You lost again."
Mom: "Satoshi, do you know why bullets fly off?"
Satoshi: "I don't know why."
Mom: "What happens is that air inside this straw is pressed so much it can not hold any more."
Satoshi: "It can't hold any more?"
Mom "That's right. Just like when you have to go to toilet."
Satoshi: "I know the feeling."
|A potato||(A big one)|
|Straws||Two types with slightly different diameters (6 mm and 4.5 mm), several each||(Straws should be relatively rigid.)|
|A pair of scissors, a small dish, and a knife|
* If potato bullets get dry, you can not shoot them well. Keep bullets in water.
* Occasionally potato bullets become stuck to the narrower straw. To avoid this problem, you may want to fill the end of the narrower straw with a potato piece before shooting.
* You can also use a sweet potato or a daikon radish for bullet material.
* Never aim at people! It's very dangerous!
This hand-made air gun is very simple to assemble, but it makes such a refreshing sound. Because of this sound, playing with this toy is such a fun. Initially I thought hand-made toys needed a long time to assemble, but this one is so simple even children would be able to make easily. But if you play with this toy for a long time, your may feel pain in your hands. So please don't overdo it.
|Author||Yumiko Mori (Zushi, Kanagawa, Japan)|
|HTML format||Muneo Kume|