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Many things that we see every day, have a little secret. Without hesitation and without knowing about them, we often complicate their lives. Most of the instruments, objects and devices much more thoughtful and more practical than it may seem at first glance. Every detail has a special meaning, a secret function. If you think about it, come immediately to mind the original form of bottles, non-standard markings on toothpicks and even unusual screwdriver handle. Examples of mass, but in the secret of their destination has yet to penetrate.
1. Important news about planes
Maybe you did not notice, but the airplane windows have small holes. At first, this may come as a shock, but actually they serve an important function. The holes do not allow windows to fog and provide compensation for fluctuations in air pressure at the respective heights. But should not be afraid, the plane is thought to detail design.
2. An interesting design on the microwave door
How often have strange annoying black mesh on the door of the microwave oven, but in reality it plays quite an important role. Though the food inside is hard to see, but it is heated evenly thanks to the Faraday shield (so-called black box on the grid). And it protects the outer space from the microwave radiation waves.
3. Sophisticated ballpoint pen
Even when a seemingly simple choice of a ballpoint pen should be guided not only the criteria of appearance and quality of writing. It must be as safe as possible, but for this kind of answer holes on its cap. More than once, people put a cap in his mouth and swallow it accidentally. If the cap is going the wrong way, the hole will allow the air to flow into the airway until the first aid will be given. If you think about the holes in the cap clearly saved many lives.
4. Additional pieces of fabrics for clothes
Some new clothes are sold with a few spare pieces of fabric. This is not just. They are intended to ensure that buyers can easily check the resistance of the fabric color. They are particularly relevant to the laundry when it is necessary to check the effect of the new detergent or stain removers for strong action. Now, knowing this secret, very few people will continue to dispose of these additional pieces of cloth as before.
5. A bottle of wine
The bottom of a bottle of wine is not for nothing has the unusual structure. This helps to quickly cool the drink and make it immune to the increased pressure. This form is also easier to keep the bottle and pour the wine into the glasses.
6. Pompom hat on
Now pompoms very popular simply as decoration for hats. But before they were used by the French Marines at very practical reason. In the 18th century in the cabins were quite low ceilings that Marines often touched their heads. Not to get bruised and eliminate discomfort come up with pompons, as a kind of radar altitude.
7. The hole in the spoon spaghetti
Most spoons for cooking spaghetti is a hole in the middle. It is primarily used, it was convenient to drain the excess water. However, some of the holes in the spoons are quite suitable for the measurement of one batch of dry spaghetti. Try it yourself.
Many do not realize that familiar to us things may be different caches. There can be safely hide the most valuable.
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A source: https://novate.ru/blogs/110319/49749/