This article invites you to remember a simple and interesting toy from your childhood. Surely many of you had a funny and kind tumbler. And many remember how they could spend hours watching the “vanka-stand-up” chaotically spinning and swaying from side to side. We also talk about an equally interesting and simple “tumbling tumbler.” The operating principle of both toys is very simple, and you can easily make an original gift for a prophetic child after reading our article.
Types of tumblers and their principle of operation:
Tumblers can be very different, since this toy is known in many nationalities, it has a great variety of names, not to mention the forms (Figure No. 1) and modifications.
Figure No. 1 – Options for tumblers Although, no matter what you call the tumbler, what wrapper you put it in, no matter how you paint it, the principle of operation is the same for all of them.
The design of the tumbler is simple and straightforward. As a rule, this is a pear-shaped body inside of which a weight is attached to the bottom - it is this that returns the tumbler to its original position (Figure No. 2).
Figure No. 2 – Sketch of a tumbler How to make a tumbler:
Naturally, you can easily and simply make a tumbler yourself, you just need to use your imagination. For example, you can use eggshells. All you need to do is punch a small hole in the top of a chicken egg, then pour out or drink all its contents (it’s up to your taste). Afterwards, you need to pour weights into the punched hole (fishing weights, pieces of lead, nuts, pebbles). Distribute them in such a way that they fit compactly on the bottom of the eggshell. Next, you need to pour paraffin or wax (whatever you have on hand) from a candle into it and melt it inside the egg, carefully holding it over the flame. Then, without turning over or changing the position of the weights, wait until the wax cools down. That's all, in principle the tumbler is ready, all that remains is to seal the hole in the shell and paint your toy.
Attention, if the weight is not secured to the bottom of the tumbler, it will not return to its original position (Figure No. 3).
Figure No. 3 – If the weight is not secured Although even in this version, your toy will look original - as you put it there, it lies and does not roll. But this is no longer a tumbler, but another toy.
How to make a somersault:
There is another original toy very similar to a tumbler - this is a “tumbler” (at least that’s what I call it) picture No. 4.
Figure No. 4 – Somersault You can make a somersault yourself, for example, cut out a template from cardboard as shown in Figure No. 5 and glue it together by placing a ball inside (Figure No. 6).
Figure No. 5 – Sketch of a tumbler development. The secret is simple, inside the tumbler there is an ordinary ball from a bearing (Figure No. 6), which rolls, causing the toy to move in a very unusual way.
Marina Suzdaleva
Walking along the shelves with the so-called educational toys for children, I came to the conclusion that my 5-month-old daughter does not need such a gift from Santa Claus for the New Year. On the one hand, all these toys seem to me somehow of the same type, on the other hand, many of these toys remained from Yegor (after all, in his first months of life, I was not yet an enthusiastic mother and bought everything I could “get my hands on”), besides But Vasilisa, of course, still doesn’t care about gifts, or about Santa Claus, or about the New Year. However, a couple of days before the New Year, the “super-mom” inside me still woke up, and I decided to make a gift for Vasilisa myself - make a tumbler toy with your own hands. I spent the whole evening drawing sketches of the future toy - first I had the idea to make it in the form of a snowman, then in the form of the head of Santa Claus, and finally (probably inspired by what we had recently), I settled on what I would do tumbler tree.
For work I needed:
- a large plastic container for a chocolate egg;
- materials for making a tumbler - we have plasticine and a handful of screws;
- “Iris” threads in three shades of green and brown, hook No. 1.5, scissors, needle;
- beads for decorating the Christmas tree and giving it additional sensory value;
- filler for the top of the Christmas tree - I used a rustling bag, you can use any other lightweight filler like padding polyester that will not shift the center of gravity.
My sequence of actions was as follows:
As you understand, the Christmas tree itself or any other figurine for your tumbler can be sewn with your own hands, made from a lost sock, children's tights, gloves, paper, a plastic bottle, etc. etc., well, I’ll write how to knit a Christmas tree like mine, for those who, like me, with a “you” crochet (because those who have a “you” crochet, without my description knit such a simple Christmas tree).
The easiest way, of course, is to knit a Christmas tree in one color, but I wanted to use three colors (development of color perception and all that). I alternated colors every 3 rows, and made an increase in every fourth row. Of course, I didn’t come up with such a cunning scheme myself; I watched a hundred or two master classes beforehand. I think the original source is somewhere Here. As I knitted, I knitted beads in random order. For perfectionists, I especially found a detailed video about how this is done “according to science,” because I probably won’t be able to describe in words how I tied them in (the main thing is that it turned out very well):
Crochet Christmas tree:
1st row: We start knitting from the top. Those who know how, start with an amigurumi ring, and I, in the old fashioned way, cast on a chain of 5 chain loops, close it into a ring and knit 6 single crochets into the ring (hereinafter referred to as sc).
2nd row: 2 st.b.n. in each loop of the previous row = 12 st.b.n.
3rd row: 12 st.b.n.
4th row: 12 st.b.n.
Row 5: change the thread to the second shade, 12 st.b.n.
Have you recently become a mother of a baby?
Row 6: (1 dc, 2 dc in one loop of the previous row) * 6 = 18 dc.
7th row: 18 st.b.n.
Row 8: change the thread to the third shade, 18 st.b.n.
9th row: 18 st.b.n.
Row 10: (2 dc, 2 dc in one loop of the previous row)*6 = 24 dc.
Row 11: change the thread to the first shade, 24 st.b.n. etc.
When the cone reached the height I needed (I tried it on according to the width of the egg, so that the egg began to narrow below the edge of the knitting), I knitted a couple of rows with decreases and started working on the barrel. The trunk was simply knitted in the round with brown thread, adding 6 st.b.n. in every second row. (in general, here I already knitted by eye, trying on the base of the egg.
I connected the two parts of the Christmas tree with one row of single crochets, having first filled the top of the Christmas tree with a rustling bag and inserted a tumbler egg inside.
Our Christmas tree is ready! Vasilisa and all of us really liked her. And you? You can see our tumbler Christmas tree in action on my Facebook page - here here.
Who doesn’t know what a tumbler is (aka Vanka-Vstanka)? A simple plastic doll with a spherical body. You swing it to the side, but it stubbornly returns to the vertical position. It turns out that there are probably hundreds of modifications of tumblers already. With arms and legs that can perform wonderful dance steps. There are tumblers that can be put to sleep or, for example, that can stand on their heads. And a great many devices that use the “Vanka-Vstanka principle” for practical purposes.
The simplest tumbler has a simple design. A hollow round body in which the center of gravity is as low as possible. In such a way that when the body is tilted, the load rises and tends to return the doll to a vertical position. This toy attracts attention because everyday experience tells us that such a design should seem to fall at the slightest effort. But she, on the contrary, stubbornly jumps up. An ordinary ball has a center of gravity equidistant from any point on the surface. Therefore, it has “indifferent equilibrium” - no matter how you put it on a plane, it will lie there. Screw the “head” to it - the center of gravity will shift upward and the toy will tip over. But a hollow ball with a displaced center of gravity will always tend to turn with its load downward, occupying a stable equilibrium position.
Origin of the tumbler
It is believed that the tumbler came to us from Japan. There it had a round shape and was called Daruma. It was believed that such a doll brings good luck. Darumas with unpainted eyes were sold or given as gifts. When making a wish, the Japanese painted over one of the doll's eyes, and when it came true, he painted over the second. Our Vanka regained his head and appeared at fairs at the beginning of the 19th century.
This Vanka was turned out of linden on a lathe, a lead weight was inserted into the lower part and the doll was painted with bright colors. It would seem, how else can you improve the simplest ball with a load? Engineering thought has reached Vanka-Vstanka.
Vanka-stanka: “advanced options”
You can make Vanka complicate his oscillatory movements by making the position of the center of gravity changeable. In this model, the load is fixed on a flexible pin. Oscillating at its frequency, it introduces additional harmonics into the rocking of the tumbler.
And here the additional weight is attached to a rigid pin, but with a hinged fastening. It will force the doll to make additional rotational movements.
The design of this model is simpler. Here the ball rolls freely at the bottom of the doll. But in the bear pictured below, the balls roll down along a spiral path, causing it to swing and at the same time turn around its axis in the opposite direction.
And here is Vanka, who knows how to balance with his hands:
When tilted, a load connected by an elastic thread to the arms forces the tumbler to raise the arm opposite to the upward tilt. It seems that the toy is balancing with its hands, trying to maintain balance. But since there can be arms, why not add legs too? This Vanka can even move around a little :).
Liquid fuel dolls perform very unusual movements. Here the load is a ferromagnetic fluid flowing under the influence of not only gravity, but also a suspended magnet. Even a choreographer will marvel at the smooth movements of such a dancer.
Tumbler in action
The tumbler effect finds its application in everyday life. Here is a non-tipping mug for children, in which the pacifier will not lie on the table.A watch that will always be in a vertical position.
Or an iron, which is difficult to forget on an expensive dress, because it rises to a non-working position as soon as you let it go.
But here is an unusual case for a mobile phone, which is more difficult to lose in the surrounding space, because it, like a float, tends to take a vertical position.
Vanka-vstanka at his leisure
You can have fun with your children by making a tumbler from scrap materials. Take an egg, carefully pierce it with a needle on both sides and blow out the insides into a cup (useful for omelettes). The task is to place the load inside the entire shell. This can be done, for example, by melting a candle and pouring it about a third inside the shell. Now place the egg in the position in which our tumbler should be and let the stearin harden. Tumbler is ready. All that remains is to fill the holes and paint it like Vanka, Daruma, or an Easter egg - whichever you prefer.Based on materials from the sites trizland.ru, class-fizika.narod.ru.
The pictures were taken from the site "Cool Physics" class-fizika.narod.ru
Today we will learn how to make such a funny tumbler from an egg:
For this craft you will need: an egg, pva glue, a small piece of plasticine, white paper napkins, felt-tip pens.
First of all, take an egg and carefully break it into two parts, you can ask an adult to do this. We won't need the white and yolk; the inside needs to be washed and dried. After the egg has dried, drop a little glue onto the bottom of the lower shell and glue a small piece of plasticine there.
Now we need to glue the shells together. Apply glue to the edges of the shells and carefully connect, leave for a few minutes to allow the glue to dry.
Now take white napkins and tear or cut them into small pieces, two centimeters wide. Dilute the glue in a small amount of water (just a little), take a brush and use the brush to apply glue to a small surface of the egg, glue one piece of napkin. Cover the entire egg in this manner, then top with a second layer of napkin pieces.
Now it’s time to turn on your fanaticism and show your creative side. Take markers and draw a face or muzzle for the tumbler - perhaps it will be a pony or a cat. You can draw any favorite character or simply color an egg beautifully.
This craft can be given to friends or parents for Easter.
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