Choosing a toy for a child is not an easy and very responsible matter. It is important that the toy is not only liked by the baby, but also contributes to the upbringing, development of the crumbs, and allows to acquire various skills. Among the variety of toys, a well-known tumbler vanka-vstanka takes its rightful place.
The history of vanka-vstanki
Vanka-Vstanka dolls came to Russia from Japan, and to the Land of the Rising Sun - from China. One of these toys is the Japanese tumbler Daruma - a god with empty eyes that brings good luck. If you really want the wish to come true, you need to buy this doll, ask her for assistance, and then paint one eye with the deity. In gratitude for the fulfillment of a dream, the second eye socket is painted.
The principle of action of the toy was borrowed by Russian masters. The first roly-vostanki appeared at fairs at the end of the century before last. These were images of clowns and merchants. The description of the Vanka-Vstanka doll at that time characterizes a typical representative of the estate. The people nicknamed unprecedented products with somersaults.
Tumblers were made from linden. The master cut out two halves, then connected them with each other, having previously placed a weight on the lower part of the tumbler. The finished toy was painted, dried and varnished. Sometimes a bell was added to the tumbler. Such a doll was used as a rattle.
What does a toy vanka stand look like today?
The image of a modern doll can be different: a matryoshka, a little girl or boy, a doll in a national costume, a clown, a soldier, etc. All these toys are hollow, and their lower part resembles a ball. There is a sinker inside the ball, due to which the center of mass is located below. When you try to tumble the doll, the height of the center of mass increases. As soon as the tumbler is in contact with the ground, a force begins to act on the toy, returning the vanka-stand to its original position. The action of the force is explained by the fact that the center of mass moves away from the point of contact with the surface on which the tumbler falls. The description of the vanka-vstanka doll corresponds to the laws of physics on the equilibrium of bodies.
Unstable, indifferent and stable equilibrium is distinguished. In the first case, the body begins to move when exposed to it, changes its position in space. Indifferent balance is said to be when the body remains in place, even if it is touched or slightly pushed. Maintaining a steady balance, the body always returns to its place. This is possible if the center of gravity is in the lowest position. In the vanka-vstanka, the center of gravity is located just below, and the load is approximately in the middle of the ball.
The construction of the vanka-stand considered above is the simplest. Today you can find advanced doll options. Vanka-vstanka is a toy that not only gets up, but also sways amusingly in different directions and tries to dance. If you place a deep pin inside the doll and fix the load on it, then the tumbler will make complex oscillatory movements. Racks-ups, in which the load is fixed on a hinge pin, can rotate around its axis.
Another version of the tumbler is a teddy bear with a spiral located inside. Balls roll over it, as a result of which the bear sways, turns around itself and in the opposite direction. Some vanka-upans successfully balance their hands. It seems that the doll can keep balance. The principle of operation is as follows. The load is connected to the hands using an elastic thread. During movement, the tumbler’s hand rises in the direction opposite to the slope. If you attach legs to a toy, then it will be able to move short distances.
Traditionally, the load at the vanka-vstanka is a lead ball. But the engineers went further and constructed a doll with a magnet and ferromagnetic fluid inside. It turns out that, together with the force of gravity , the magnet also acts on the tumbler. The magnetic field ensures that the vanka-vstanka moves smoothly. It seems that the doll is dancing. The description of a vanka-vstanka doll with a magnet will surely resemble a story about the movements of a ballerina.
Other images of vanka-vstanka
Modern vanka-vstanki are not only dolls. In addition to tumblers (baby, sailor, polar bear, kitty, etc.), light industry produces chess with cargo and somersault capsules. For tumble-chess, the metal load is located below. The figures themselves are rounded in this part. An oak grid with magnets attracting loads is mounted in a chessboard . Thanks to the action of a magnet, chess always returns to its original position.
In one part of the tumbling capsule is a load, and the other part remains hollow. At the request of the owner, such a capsule can stand upright or jump and somersault in the hand.
What is a tumbler for children?
Vanka-vstanka is a toy with which a child gets acquainted as soon as he learns to sit. The baby practices discernment of sounds, gets ideas about the appearance and diversity of everything that comes into view, tries to name objects.
Older children use the doll for games in the "mother-daughter" or as a sentinel to guard the "state border". Games in which there is a plot and roles are invaluable for the development of speech. There are also specially designed exercises for the speech development of babies. For example, a description: vanka-vstanka dolls, nesting dolls, seals, dogs. You can describe anyone, but the kid is more willing to complete the task, if it is interesting to him. And a bright, colorful doll, which also does not fall, rotates or dances, has interested more than one generation of children.
How to make a vanka-vstanka at home?
You can make a vanka-stand yourself from an egg, paper, cardboard or a ping-pong ball.
Tumbler of Eggs
Before you start work, you should stock up on the actual egg, cogs and nuts (or other weighting agents), and also prepare a candle. A small hole is made in the egg through which the contents are poured. An empty egg must be washed.
A weighting agent is poured inside the egg, which is fixed with paraffin. Paraffin drips from a burning candle that is held above the hole in the egg. After the paraffin has solidified, the toy turns over and is decorated (eyes, nose, mouth are attached, or a pattern is simply applied).
Cardboard vanka
To make such a tumbler, in addition to paper or cardboard, you will need a metal ball, gauze, scissors and glue. The length of the sheet should be eight times the diameter of the ball, and the width should exceed the value of the diameter three or four times. If cardboard is used, then a square with a side equal to the diameter of the ball times four is sufficient.
A “pipe” is glued from paper or cardboard. It is necessary to ensure that the distance between the inner walls of the "pipe" and the ball is approximately one millimeter.
The edges are pasted over with gauze (it should be convex) so that the ball can only roll out of the pipe by half. Then you need to let the glue dry, and the funny capsule is ready.
Ping Pong Ball Toy
The algorithm of actions here is the same as with an egg (a load is put inside the hole and filled with paraffin), only the head is glued to the top of the ball. It can be cut out of paper.
Bright, colorful, brilliant in its simplicity, a toy vanka-vstanka is a true friend of kids.