> >10 things, the true purpose of which most do not know
Have you ever thought that things are not as simple as they seem? The true purpose of these 10 things most do not realize. Let's try to figure it out.
Rubber lining under the soda cover
Eh, one type of these thin rubber bands causes an uncontrollable tide of nostalgia and childhood memories. They also always wondered what this thing was for? Here's the answer: a rubber lining helps keep the gas in the drink. And without it, any cola and even Borjomi would turn into ordinary water.
Strange horizontal stripes on the keyboard
No, not those that are from eating sandwiches at your desk, but mysterious "bulges" on the keys "A" and "O" (or the English "F" and "J"). It turns out that these are tips for people who are blindly recruiting.These buttons should be located index fingers for the initial position of the "blind" set. Check for yourself.
A small hole at the bottom of the padlock
What is this, a spare "entry" for the master key? No, to open the lock through an additional hole just will not work. Its purpose is different: to protect the device from rust. After all, through it moisture is removed, which gets into the mechanism in the rain, and you can also pour oil, if the lock did start to jam. So without such a strange design solution, the locks would have fallen into disrepair much faster.
Curved tip measuring tape
Have you ever wondered why a tape measure starts with a strange curved piece of iron, and even with a hole inside? Do you think that it was easier to get it? Partly true. But the main function is different: with the help of this hole you can hook the tape measure onto the nail head and securely fix its beginning for further measurements. Very useful if you are working alone. By the way, the notches on this iron tip can make marks. It is necessary to press only slightly.
Office knife cap
Noticed this black semicircular cap at the base of the stationery knife? First, it is removed (yes, you can check). And secondly, if you attach it to the blade itself along one of the lines and press lightly, then you can easily separate the dull tip. And the knife will again be cut as good as new. And it looks so simple ...
Fifth (small) pocket on jeans
Generally a mysterious thing. And you will not thrust a hand there, and money is crumpled. And why is it needed? It turns out for ... lighters! Especially for the classic, like a rectangular Zippo. But smoking from him is really no use. So, a tribute to historical tradition.
A tiny hole in the airplane's porthole
No, this is not a manufacturing defect. This is protection of glass and your safety. The fact is that the window consists of two glasses, internal and external. But because of the gigantic difference in pressure outside and inside the cabin, the inner glass may burst. The hole conducts air between the cabin and the interglass space, thereby normalizing the difference in pressure. And all remain safe and sound.
Holes on the side of the shoe
At first glance, an extremely impractical solution: ventilation is, of course, not bad,but in the rain it's not great at all. But if you use the holes for its intended purpose, everything will immediately fall into place. First, through them you can skip the laces and tie in such a way that the tips do not interfere with walking. This is exactly what tennis players and other athletes did, for which sneakers were originally created. Secondly, in the same way (and if you tighten it too much) you can narrow the shoes, which are a little too wide for you. Well and thirdly, the natural ventilation mentioned above. Why? In the summer, and even in socks - just great. And in the rain to wear sneakers do not need.
Sample fabric on new clothes
Admit it: Were you always sure that this piece of fabric was also for patches? And no. A sample and a sample to participate in the experiments. And it is on this fragment, and not the thing itself, that the manufacturer suggests checking which washing mode, ironing and cleaning powders are suitable for the new thing. For those who do not trust the instructions on the label. Well, with a button that often comes bundled, it is still easier: you can replace it with a lost one or take it with you to the store to pick up the whole set.
Spaghetti Spoon Hole
The obvious on the surface: through the hole with pasta water flows and does not fall into your plate. But there is another hidden possibility. It turns out that the diameter of the hole on the spoon perfectly accommodates the exact amount of dry spaghetti that is needed for a single serving.