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10 Common Things Whose True Purpose Is Unknown To Most People

Our world is full of things that we use every day but never really think about. It turns out, however, that even the most mundane objects in the world can often have fascinating histories behind them if you're willing to look.

Keeping that in mind, here's the real scoop behind several common, everyday items that you may not have thought about before.

1. The loop on the back of your shirt

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There are three explanations for this loop. The first is the most plausible and believable - it's used to hang up your shirt. It may also have been used in the era that suspenders were common to help keep them in place at the back. Finally, some say that the loop may have been removable, as an indication that a young man was committed to a girl.

2. The cylinder on your laptop cable

Bright Side

Have you ever wondered what that cylindrical attachment on your laptop cable is for? It's called a "ferrite bead," and it uses an insert made of ferrite to suppress high-frequency noise in the cable.

3. The small hole in an airplane window.

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Airplane windows are made of two sheets of perspex glass. Due to the significant difference in air pressure between the cabin and outside, the inner window would shatter on it's own. The little hole allows the pressure to equalize between the two panes of glass by allowing air to pass between them.

4. The blue section of erasers

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A lot of people think that the blue part of an eraser is for erasing pen marks. This isn't exactly true, however. Originally, the purpose of the blue part of the eraser was to remove markings from thicker paper. The pink part can sometimes leave behind traces of what was written, but the blue part really gets rid of everything. When they found that most people didn't know what the blue part was for, so they started marketing it for its ability to erase pen marks.

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5. Horizontal buttonholes

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Ever notice that your shirt has horizontal holes in a few spots - usually the top and bottom - while the rest are vertical? There is actually a fairly straightforward reason - horizontal holes are less likely to come undone than vertical ones, and these spots are the most likely to come undone.

6. Extra holes in your sneakers

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Very few people use these, but they should - these holes were designed specifically to help fix the shoe in place and prevent your feet from rubbing around the ankles while playing sports. Learn more in this video.

The Sun

By the way, those holes in your Converse? They're meant for a snugger fit as well as ventilation.

7. The hole in a spaghetti spoon

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The hole in spaghetti spoons is meant for measuring roughly one average portion of pasta. Who knew?

8. The tiny pocket and rivets on your jeans

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These days, people use that little pocket to hold candy, loose change, lip balm, and all sorts of other things, but back in 1873 when Levi's first debuted it, it was meant to hold a pocket watch. The metal rivets are used to reinforce areas that were most likely to fall apart due to strain. The technique was hugely successful and has since become a standard feature in most jeans.

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9. The hole in a pen cap

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This hole is a safety measure that can help prevent someone from choking to death if they accidentally swallow the cap.

10. That extra bit of material/buttons with new clothes

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While the buttons are meant for repairs, the scrap of fabric isn't intended to patch up holes in your clothes. They're meant for you to wash with different detergents/bleach to safely test what your new clothes can withstand before you accidentally ruin them in the wash.

Remember to SHARE these tips with your family and friends.

H/T: Bright Side

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