Use the blown-upballoons< /a> It can shrink and run out of air. It is a handmade car that can run. You need to prepare four wheels (with shafts) of a used toy car, a disposable chopstick, a used ballpoint pen and 502 glue. Our production idea is to let the gas in the balloon eject from the ballpoint pen cover and push it through the reaction force. down, generating power to drive the car forward.
Preparation materials: wheels, disposable chopsticks, balloons, glue, ballpoint pens, Straw
1. Get straws and wheels as spares
2. Use straws to fix the wheels in pairs, as shown in the picture
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3. Use disposable chopsticks to connect and paste the front and rear four wheels
3. On the chopsticks Paste a small mat in the middle, as shown in the picture
4. Unscrew the ballpoint pen, remove half of it (the part that exposes the tip), and stick it together with glue Sexual chopsticks
5. The car is finished. After inflating the balloon, install it on the pen tube. After releasing your hand, the car will run automatically. Get up!
