That's what this hole is: 10 the usual things, about the true purpose of which we did not know

After all, our world is amazing and we still do not know much. We talk about the unexplored places deep in the jungle or under water column of the ocean, unknown tribes, which is unknown benefits and problems of civilization.

No, we're talking about simple and familiar things that each of us uses every day and often unaware of their original purpose. And it would be necessary.

POM-poms on the hats

Nowadays, the POM-poms are considered to be accessories, but the story of their origin begins in the XVIII century. French sailors wore hats with POM-poms, to protect your head when hitting the low ceiling of the lower deck. Later, the POM-POM can be seen in military uniforms of various armies. At that time, according to their color and shape, it was possible to distinguish a common soldier from the officer and find out about his belonging to a particular shelf and kind of troops.

Square hole on a stick Chupa Chups

Many believe that the hole is designed on the case if the child will swallow her hole will allow it to breathe (as in the case of a cap to a ballpoint pen). In fact, this is the function of the hollow stick. A square hole on the side holding a Lollipop. When the wand is lowered into the liquid mass, the hole is filled first and solidifies, securely fastening Chupa Chups.

The arrows on the trousers

If you thought that the arrows were not originally a fashion item, then you are right. In the late nineteenth century European clothing factories most of the products exported, and to fit plenty of goods on the ship, the clothes are so much compressed that the shooter appeared to get was very difficult.

The mysterious "pocket" on women's panties

The inner layer of men's underwear and women's made from a special soft material. Don't know what were your assumptions, why you need this pocket. Someone at school thought that you can hide the condoms or pads.

It is actually much easier. This is an additional piece of natural fabric to maintain health of intimate parts of the body, because the materials from which sew the clothes, this does not help. When sewing both seam impossible to make the inside, so one seam not sewn up and it looks like a pocket.

Rhombus leather backpack

Now this "patch" as many call it, is seen again as an accessory. However, before he was pulling the rope, carabiners, and tied the extra equipment while Hiking and climbing.

The opening between the camera lens and flash on the iPhone

Few know that this small hole is actually a microphone. It suppresses background noise when recording and helping Siri recognize the accents.

Figure 57 on glass Heinz ketchup bottles

Surely you thought it the design or the quantity of ingredients used, and maybe a reference to a date. However, if the ketchup is not in a hurry to be in your plate, tilt the bottle and tap with the hand on this figure.

Symbol of container, and figure

On each package of a cosmetic product, be it eyeshadow or powder, here is a picture of the container and the symbol 6M, 12M or 24M. These numbers indicate the product shelf life in months after opening.

Replacement blades for hobby knife

Dull blade in the knife can be replaced, broke off a section. If they are right, it is not dangerous — slide out the dull blade and break off it with a clipper, which attaches the bottom of the knife.

The switch on the rear view mirror

With this button the driver at night will not be blinded by headlights going behind the car. Rear view mirror has two reflective coatings, and you can switch them by pressing this button.