What does a child use to whip a gyro in a gyro pumping contest?

What a child uses to whip a gyro in a gyro pumping session.

As follows:

The gyro is one of the earliest recreational tools in Chinese folklore, also known as the gyro, Minnan language called "dry music", the north is called "ice spindle (gá)" or "playing the old bull". "or" playing the old cow ". In the north, it is called "ice spindle (gá)" or "playing the old cow", and in the north, it is called "ice spindle (gá)" or "playing the old cow".

Beijing area called "welding tip", one because the tip of the metal welding points, two because the people of Beijing hope that children from childhood to understand, "traitor" is to be flogged by all. The shape is round at the top and sharp at the bottom. Once upon a time they were mostly made of wood, but now they are mostly made of plastic or iron. When you play, you can wrap a rope around it and pull it hard to make it rotate upright. Or use the elasticity of the clockwork to rotate.

Traditional ancient gyro roughly wooden or iron inverted conical shape, play is to use a whip to split. In modern times, there are gyros that are fired from a transmitter. Of course, there are also some "hand-twisting gyro" is very popular. The gyro is a very familiar toy to teenagers. It is popular all over the world. China is the old home of the gyro. From the Neolithic site in Xia County, Shanxi, China, stone gyros have been excavated.

It can be seen that the gyro has a history of at least four or five thousand years in China. In the Jin Dynasty, more than 1,700 years ago, another interesting toy appeared in China - the bamboo slice dragonfly. When this toy arrived in Europe in the 18th century, it was known in the West as the "Chinese gyro", so it is clear that the real gyro reached foreign countries even earlier than that.

Why call the bamboo dragonfly "Chinese gyro"? The original formally proposed "gyro" this term, is the mid-19th century French physicist Foucault. In English, gyro means "rotating body". A gyro is a rotating body that turns on the ground, and a bamboo dragonfly is a rotating body that turns in the air, so a bamboo dragonfly can also be said to be a gyro.

In this way, all rotating bodies can be regarded as a gyro. Like we play with the bamboo, acrobatics in the spinning disk, juggling plate, throwing hats, fast-spinning ballet, are the use of the gyroscope principle. Gyroscopes can be seen everywhere in the world around us. As small as atoms, as large as the Earth, can be seen as a rotating spiral.