More than 10 things we always see but we do not know the real purpose of them

Every day we see a lot of things that we have always used or encountered in our daily lives, but we are not entirely aware of the real purpose of their invention and existence.

• The posters that we see on the fruit: Some believe that the only purpose of these posters on the fruit is only to know the country of origin, but few of them know that there is in these posters numbers with indications such as: if it contains 4 numbers and the first number 4, That this fruit has been sprayed with insecticides, and if the number of 5 and the first number of them is 9, it indicates that this fruit organic, but if the first number 8, it means that this fruit is genetically modified.

• The hole in the middle of the Donuts candy: These sweets spread very much in many places, but have you ever wondered why there is a hole in the middle of it ?! Hundreds of years ago, when it was first invented, the candy makers came to this form after several attempts to obtain an equally baked candy from all parts. Despite the evolution we have achieved, In the field of cooking, the form of donuts has become a registered trademark of this dessert.

• Black dots and ferrite bands along the edges of the car windshield: These black bands are incorporated and manufactured mainly in the paint phase. These tapes and dots have several uses and functions. First, they protect the UV material and UV-proofing, The dirt that collects along the edges of the glass, and for the points they provide visual transmission from the black Ferrite strips to the transparent glass, and works to distribute the temperature better during the manufacture of windshield.

• Sunglasses: Some may know the purpose of the invention of sunglasses, it is obvious and clear of the name they protect from the sun! But what she did not know was that the invention of dark glasses was done by Arctic peoples as a means of protecting their eyes from the intense sun reflection on snow (which may cause so-called snow blindness). The use of glasses was widespread among Chinese judges in the twelfth century so that they could Hide their real reactions to witnesses.

• The margins in the writing book: The margins are now used by teachers to put their notes, but at first this was not the purpose of inventing those margins. The real purpose was to avoid the rat eating !. The mice were devouring the paper to avoid it and to preserve the existing information With paper, these margins were made and people began to write within those margins to leave space on the edges of the paper in anticipation of the rat eating.

• Small balls carved into golf balls: In the beginning, golf balls were made smooth, but over time the golfers realized through trial and error that the old balls, which had the (unspoiled) clicks, were better to play and kept them using worn and old balls Always, when manufacturers noticed that they started producing golf balls with clicks etched into them to mimic the balls that were used before.

• Half of the belts on most coats: This small piece is found on many jackets and coats but we do not know the purpose, and you will be amazed at the real purpose behind the existence of those belts, the piece appeared for the first time in centuries in the military camps, the coats were used for two purposes in it The first is when the belt is tied, the coat becomes suitable, and secondly, when the belt is removed, it is used as a blanket for heating, but it becomes an aesthetic piece with the change of time added to coats and jackets.

• The holes in the locks: We can not stop using the locks in our lives but over time and when exposed to water, we see that it has rusted and became ineffective We often resort to get rid of them and buy new locks but what do not know that there is a hole in the bottom of the lock to solve This problem, it is by placing some drops of oil in that hole you find that the lock becomes easy to use as before !.

• Fonts engraved on the headphone jacks: Of course, we all have engraved lines that may be 2 or 3 on the headphone jacks, they are not only made for decoration but also have wired wires for each headset. If not, this will affect the speaker efficiency and you will notice that A sound from one of the headphones.

• The smooth edges of the coins: In the early sixteenth century the grooves appeared on the edges of the coins, and the metal pieces at the time were made of precious metals and for this reason it was issued small quantities and of course there were a lot of frauds and try to imitate those coins with cheap metals, This practice has developed a special process known as "Reading", which consists of carving a series of grooves on the edges of the coins so that it is difficult for others to imitate them. Although the metal pieces are now complex and difficult for anyone to imitate, this technique has remained so far.

• The skin surrounding the nails: Many ladies, especially those going to the beauty salon, remove (or cut) the skin surrounding their nails, believing that this increases the beauty of the nails and also to be smooth nail polish when placed, but what they do not know that removing these skin to expose nails to injury The purpose of its existence is to protect the nails from the infiltration of bacteria and fungi to it, I think that after knowing this information will not resort to the day to remove them at all.

• R code next to most brands: In case you are wondering why there are some brands next to the R code with a circle around it, the answer is very simple! This symbol means that this trademark is officially registered with the United States Patent and Trademark Office, where it gives the trademark owner the right to use ® on its products and also sues anyone who attempts to infringe and misappropriate the trademark.

• The back part of the cutter: This piece is there to be used (after removing it from its place) to break the piece from the catcher until the next piece is used.