We develop fingers, or Volchok with a thread: how to launch it

The top, or yule, is the oldest toy that started the gyrocompass and is studied by students in the section "theoretical mechanics".

Who invented the top?

It is not known, but archaeologists constantly find tops in excavations at different ends of the earth in the places where the dwellings of different peoples are located. So, one of the first mentions of the top is related to the third millennium BC, namely, to ancient China. The ancient tops can be seen in the exposition of the Historical Museum in Moscow, and in large museums of other countries they too are.

Different peoples called this toy in different ways: trompo, sakai, Celtic stone. In Russia, the top was called "kubar", it spun exactly the same as all the other tops in the world. However, everything about the top and thread (how to run, how much it spins and how it falls) still interests every child.

Why is it spinning?

Volchkov in stores sold a lot. The toy can be of different size and size, made of various materials. Color the toy, too, in different ways: there are monochrome, and there are colored with a print. But all the toys behave the same way: a top with a thread (how to run - indicated in the instructions) as if it "stands" on an invisible leg, then deviates to the side, then falls.

The power with which a person pulls a thread tied to it is dispersed by a top. The toy rotates around its own center of gravity. But in the process of rotation there is a friction force on the air, and the tip of the top is rubbed against the surface on which the toy is placed. The frictional force gradually slows down the rotation, the speed drops, and the spinning top deviates from its center of gravity. Then it stops spinning and stops, falling.

How to run a toy-top?

It is very easy to do this. To understand how to launch a spinning top with a thread, it's enough to watch the video. It is required to wind a string or a thin lace on a vertical axis, put the toy on a firm flat surface, and then pull it. The top will spin for several minutes - the time depends on the size of the toy.

The shape of the top does not matter. The toy always rotates around its own center of gravity, each one is individual.

The center of gravity is the point at which all moments of the strength of any object converge. Every figure or object has a center of gravity. Therefore, the tops of any shape rotate at the protruding point. People have long noticed this feature of the toy and have always used it. The mystery of the top was unraveled and the great Newton described it from the point of view of science.

Many years after the beginning of the history of the top, scientists noticed that the axis of each of them tends to the Polar star. And this property was first discovered theoretically. Here are some amazing discoveries you can make, if you think about how to launch a spinning top with a thread.

Interesting collection of tops

Marketers have come up with an excellent move: in a chain of stores when buying a certain amount to give a free spinning top. Each tiny toy was part of the collection, and for many children of primary school age, the top with the string "Okay" turned into a desirable thing.

Children are trying to collect a complete collection, for which they began to exchange and sell individual copies through social networks. In addition, the creators of the collection came up with a design, a legend and a role for each toy. All together it was extremely fascinating. There is also a computer game "Battle of the tops". The winner of the game during the action could receive a prize - a complete collection of real tops.

Any top with a string "Okay" has its own print, which distinguishes it from other similar toys. The battlefield is sold separately. For each group of tops there is a planet. They enter into a complex game and can defeat each other.

Why do you need a top with a thread?

This is a universal wand-rescue rod for parents, especially for busy moms. It is known that the development of the brain in a child is closely connected with the movements of the fingers. The more the kid does small movements, the better he speaks, memorizes and quickly learns all the necessary skills in life. In this perspective, a top with a thread is the ideal simulator for fingers. A small toy needs to be grabbed by the axle and unwound with a certain force.

And on the axis you need to rewind the thread, and this already requires skill. The spinning top is fascinating, you want to twist it again and again. Bright colors and magic of rotation attract the child. To understand how to untwist a top with a thread, the child repeats small movements endlessly, and its development improves.