How to do the gyro?

Gyro is a simple and interesting toy, and DIY at home is also very easy. The following are the steps about how to make a gyro:

Materials:

A paper cup

a pen

A small spring

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Steps:

Draw a small circle in the center of the bottom of the paper cup with a pen, the size is about 0.5- 1 cm.

In the middle of this small circle, poke a small hole with a pen tip.

The tension spring is assembled on the convex edge of the bottom of the paper cup along the arc, so that the spring covers the area in the small hole and the small circle at the same time.

Let the gyro stand still and turn it tightly and quickly with your fingers or other objects until it can turn smoothly by itself.

After making the top, you can play! First, put it on a table or other flat surface, keep rotating, then hold the gyro handle vertically and push it forward obliquely, and you can see that it rotates quickly like a twisted sugarcane, which is very interesting. Note that if you want the gyro to rotate smoothly and last longer, you can gently apply some oil to the bottom of the paper cup.