So that's what this hole is for: 10 familiar things, the true purpose of which we did not know

After all, our world is amazing and we still don't know much. We are not even talking about uncharted places deep in the jungle or under the water column of the ocean, unknown tribes who do not know both the benefits and problems of civilization. 

No, we are talking about simple and familiar things that each of us uses daily and does not even know about their original purpose. I should have.

Pompoms on hats

Today, pompoms are considered accessories, but the history of their origin dates back to the XVIII century. French sailors wore hats with pom-poms to protect their heads when they hit the low ceilings of the lower deck. Later, pompoms can be seen in the military uniforms of various armies. At that time, by their color and uniform, it was possible to distinguish a simple soldier from an officer and learn about his belonging to a particular regiment and branch of the armed forces.

Square Hole on a Chupa Chups Stick

Many believe that the hole is designed in case the child swallows it: the hole will allow him to breathe (as in the case of a ballpoint pen cap). In fact, this function is performed by a hollow stick. A square hole on the side holds the lollipop. When the stick is lowered into the liquid mass, the hole is filled first and solidifies, securely attaching the Chupa Chups.

Arrows on the trousers

If you thought that arrows were not originally a fashionable attribute, then you are right. At the end of the 19th century, European garment factories exported most of their products, and in order to fit more goods on the ship, clothes were pressed so hard that it was very difficult to get rid of the arrows that appeared.

Mysterious "pocket" on women's panties

The inner layer of both men's underwear and women's underwear is made of a special soft material. We do not know what your assumptions were, why this pocket is needed. Someone at school thought you could hide condoms or pads in there.

In fact, everything is much simpler. This is an additional piece of natural fabric to maintain the health of the intimate parts of the body, because the materials from which underwear is sewn today do not contribute to this. When sewing, it is impossible to make both seams internal, so one seam is not sewn-and it turns out something like a pocket.

Leather diamond on the backpack

Now this "piglet", as many call it, is considered again as an accessory. However, in the past, ropes, carabiners and additional equipment were tied through it during hiking and rock climbing.

The hole between the camera lens and the flash on the iPhone

Few people know that this little hole is actually a microphone. It suppresses extraneous noise when recording and helps Siri recognize accents.

The number 57 on Heinz ketchup glass bottles

You probably thought it was the design, or the number of ingredients used, or maybe a reference to a certain date. However, if the ketchup is in no hurry to be in your plate, tilt the bottle and tap the palm of your hand on this number.

Container symbol and number

On any packaging of cosmetic products, whether it is eye shadow or powder, there is such a container image and the symbol 6M, 12M or 24M. These numbers indicate the shelf life of the product in months after opening.

Replaceable blades for stationery knife

The blunted blade in the knife can be replaced by breaking off the section. If done correctly, it is not dangerous-pull out the blunted blade and break it off with the clipper, which is attached to the bottom of the knife.

Switch on the rear view mirror

Thanks to this button, the driver will not be blinded by the headlights of the car behind him at night. The rear-view mirrors have two reflective coverings, and you can switch them by pressing this button.