Even familiar things can hide in themselves unusual features that many of us do not even notice. What we see every day may well open up from a new angle. The Novate.ru editorial board offers to re-evaluate everyday things and technologies and learn more about their true purpose.
1. Tire labels
Not everyone, even drivers, pay attention to the fact that the tires have multi-colored marks. Some even consider them to be a factory marriage. However, this is not the case. Multi-colored stripes applied around the entire circumference in the tread area of the tire are special marks that indicate its size, type and other classification features. They are especially convenient and important in the tire warehouse, when you need to quickly find the desired type in a whole pile of tires.
The circles and triangles on the side surface are also printed on the tires for a reason. They can tell a lot to a tire technician. The yellow marks show the lightest spot in the tire, which is determined at the factory when balancing the product. It is this place that needs to be combined with the heaviest part of the rim. If the label is not yellow, but red, then this is the hardest part of the tire, which is also important to consider when tire fitting. A white mark means the tire has passed the production inspection.
2. Jacket pocket
Now in such a small pocket, which is located on the chest, there is often a scarf or boutonniere. But in fact, the purpose of this obligatory attribute of an exit suit was originally conceived differently, and it was called by a special name: ticket pocket. From the name you can already guess the purpose: in the 19th century, this pocket was intended for storing various tickets. It was difficult to lose important tickets for a horse race or theatrical performance in it, and it was extremely pleasant and convenient to take them from an easily accessible place.
3. Holes in EarPods
In addition to the main holes where the sound comes from, in the headphones from Apple, there are also additional holes. They are located on the foot of each earphone. Many people mistakenly think that this is a microphone for recording sound. In fact, these holes are designed to listen to your favorite music in perfect sound. They improve the sound and help in filtering out noise. Vibration is generated by the speakers, which can adversely affect the sound quality of music. Holes in the foot of the headphones allow free air circulation and deeper bass.
4. Stripes on plugs
If you look closely, there are stripes on the plugs from the headphones. Moreover, they are not the same on different headphones. Most likely, someone wondered where they came from and what their purpose is. It happens that there are two stripes, and sometimes three, and they are also of different colors. In fact, this is not just a design move, but a deliberate practical decision. A wire runs from each of these strips to the headphones, which is responsible for their operation. It is for this reason that there are two stripes on the stereo headphones, and another one is added on the headphones with a headset. If one of the strips is broken in any way, then the corresponding headphone will stop working.
5. Number 57 for Heinz
Heinz ketchup is quite popular all over the place. But, despite the wide distribution of this type of sauce, few people guess why the number 57 is on the jar, and not some other. The answer lies in the history of the creation of the company itself. When CEO Henry Heinz was planning an advertising program for his product, he came up with an original idea inspired by a shoe store. He attracted his customers by offering 21 shoe styles. Henry Heinz decided to use a similar advertisement to attract buyers to his ketchup. He counted how many products the company produced during its work. And, despite the fact that there were significantly more products than 57, he decided that this number would be decisive in promoting his product.
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Interesting information: The legendary Heinz ketchup recipe was invented in the 19th century.
6. Deepening at the bottom of the mug
Some mugs have a small indentation on one side, which might confuse most casual users. You might think that this is an original decorative technique, but in fact, such a feature of the mug has practical significance. The recess is designed to prevent excess water from accumulating on the mugs after they have been washed in the dishwasher.
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7. Wooden hangers
Now in stores you can find a wide variety of hangers for every taste and wallet. They differ not only in size and appearance, but also in the material from which they are made. The buyer mainly focuses on the price and appearance, since many have forgotten or even did not know that wooden hangers also have a practical value. Real wooden hangers are made from cedar. It is this type of wood that is chosen because of its ability to scare away moths and prevent its breeding in the closet.
These examples are far from the only ones. Is there some more at least 9 familiar things with special functions that few people know about.
A source: https://novate.ru/blogs/070620/54757/