We see a lot of things in our lives that we can’t really make sense of, even if we don’t wonder what their purpose is.

11. 10 things you thought were useless, and why they’re actually not

Today, we’ll share some of these secrets, like the purpose of that little plastic cylinder on your laptop’s charger cable.. We’re more than happy to share these helpful tidbits with you!

10. What’s that buckle on the back of dress shirts for?

For shirts, the back buckle is designed to suspend a garment, hold a tie, or even to represent one’s relationship status. If you’re married, you can cut the buckle to let the whole world know.

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9. What is that cylinder in the middle of your charger cable on your laptop, and why is it there?

You’ve probably noticed this clunky thing hanging out on the charger for your camera or laptop. It’s a simple, yet very important little device called a ferrite filter. It’s there to the parasitic currents that pass through the electrical conductor. Its design is very simple – inside the cylinder you’ll find ferrite plates surrounded by the cable.

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8. The little hole in the opening in the potholes of planes – what does it do?

That tiny hole on the window of your onboard window seat regulates the pressure between the incoming and outgoing air flowing between the two glass panels.

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7. Why are only the buttons at the very top and bottom of dress shirts horizontal?

Yet another hidden secret about the shirts you wear, but this one isn’t as poetic. The vertical alignment of the other buttons makes it easier for them to pop off or snap in half.  With a horizontal hole, the pressure goes to the end, and therefore reduces the risk of the button coming out of the hole.

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6. Why do sneakers have these small holes on the side?

Those seemingly meaningless holes are there to adjust the feet and reduce your chance of getting blisters. (Good thing they’re there, right?)

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5. What is the blue tip of the eraser for?

Contrary to popular belief, the blue part of erasers was originally for erasing marks on thicker papers. It was later used to remove pen ink, as it proved to do a better job than the pink side.

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4. What is the hole in the spoon you use for spaghetti for?

(This is awesome! Why has no one ever told me this?) Pourquoi on ne me l’avait jamais dit ? The hole in the spoon for spaghetti is used to measure the amount of pasta to prepare for a standard serving. Obviously, not everyone has the same appetite, but the opening allows you to measure an average portion by passing dry pasta through it before cooking – genius!

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3. What’s the point of the tiny jeans pocket?

Most people think it’s for condoms. You can use the tiny pocket for anything you’d like, even contraceptives, but that’s not what it was intended for. It appeared for the first time on a pair of Levi’s in 1873, and was designed to store a small pocket watch.

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2. What is the purpose for the hole in pen caps?

We all have the wrong answer to this questions: many think the little hole was created for precautionary purposes, to ensure that air could still reach the lungs if swallowed on accident. This is not the case, though. If you strangle yourself with a small object, the lining of the throat will begin to swell. The small hole keeps the plug from sticking to the mucosa.

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1. What’s the point of the extra little swatch of fabric that comes with new clothes?

For new clothes, the extra piece of fabric is used to check the washing resistance.

 

 

 

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