24 Everyday Things You Never KnewThe Use Of

24 Everyday Things You Never KnewThe Use Of

published by: Alpha Bryssess January 23, 2018

1. Think the hole in the lid keeps the ballpoint from drying out?

A lot of people think the hole in the cap of a ballpoint pen is there to keep the pen from drying out, or that it's there to keep a pressure balance that prevents the pen from leaking. The real reason it's there is much more straightforward:It's there to lower the risk of suffocation. If a small child was chewing on the cap and choked on it, the hole keeps their airway from closing up entirely.

2. Ever notice the little holes in the windows of airplanes?

3. You know that extra piece of fabric that comes with new clothes?

You probably always thought it was there for patches, right? Wrong! The manufacturer includes that little sample of material so you can test how different laundry detergents will react to your new garment.

4. And this little pocket on your jeans?

The purpose of that little pocket is obvious to any Wild West cowboys or 19th-century gold miners reading this. It's where you kept your pocket watch when jeans were first invented.

5. Okay, but what about the studs?

When Levi Strauss made his first pair of jeans, it was a pretty common problem for the seams of the trousers to tear due to the stress being put on them by the workmen and miners who wore them.The rivets just exist to strengthen the trousers at the most conspicuous spots.

6. What are those little holes in Converse All Stars there for?

The main reason they're there is the most obvious one: ventilation.But some people think that because Converse All Stars were originally made as basketball shoes, laces could be looped through the extra holes for a snugger fit.

7. Ever notice the little hole at the end of a tape measure? Ever wonder what it's for?

8. And what about the little serrated edge?

9. That hole in the handle of your pot is useful for more than one reason.

Sure, the main reason that hole is there is for hanging up your pot, but next time you need to set down a messy cooking spoon you'll know exactly where to look.

10. And the hole on your pasta spoon?

11. What's that arrow next to your gas gauge there for?

Maybe you've never even noticed it before, but that little arrow is secretly the most convenient feature on any car. It indicates which side of the car the gas cap is on. Believe me, it comes in handy when you're driving a rental car.

12. Why is one side of a bobby pin bent into a zigzag?

That's an easy one! The grooved side is the bottom of the pin and should face toward the scalp. The grooves help the hairpin hold the hair better.

13. Ever notice a little hole in the bottom of a padlock?

That little hole is there for a few reasons. The first is that it lets water drain out of the lock if you're using it outdoors, so it won't rust in the rain or freeze and break in the winter. The hole can also be used to oil the lock to keep it working well.

14. What about this thick bit found on many cables?

Those little cylinder-shaped lumps are ferrite cores or chokes, and they're essentially just chunks of magnetic iron oxide that are there to suppress high-frequency electromagnetic interference.Have you ever heard weird interference when your cell phone goes off too close to a speaker? Well, ferrite cores are there to keep that from happening to your monitors, power supplies, and everything else.

15. Do you even know how utility blades work?

Take a close look at the blade on your box cutter or utility knife. Notice the little score lines? You can break off the end of the blade to give yourself a fresh, sharp blade whenever you want. To do so, take that back cap off, slide the blade out the back end, and use the cap to snap off the end of the blade before putting it all back together again.

16. And why do some caps have a little spike in them?

Unscrew the lid, flip it around, and push it in. The little spike will punch right through the protective foil on a new container.

17. And the little bumps on the "F" and "J" keys on a keyboard?

Most trained typists will already know what they're there for. In 10-finger typing, the "F" and "J" keys are the home keys, where your index fingers rest. The little bumps let you find your way back to the home position without looking down at your keyboard.

18. What about the hole found in rulers?

Easy. It's for hanging them up.

19. Why does an Apple power cable have wings?

20. And while we're at it, what's the dot next to the camera on an iPhone for?

It's a microphone for when you're using the back camera.

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