Useful Features In Everyday Objects That Most People Don’t Know

Humans often ignore little details about many things.

Turns out, there are tons of things around us on a regular basis that actually have hidden functions behind them. They’re not there for no reason. They actually have a purpose and we’re here to tell you a few of them.

1. The Hole in the ballpoint pen lid

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. The little holes in the windows of airplanes

That little hole is there for two reasons:

The first reason is to compensate for air pressure.When the plane climbs to cruising altitude, there's a huge pressure difference between the inside and outside of the plane. The hole is there to regulate some of that difference so that the outer window doesn't have to do all the work.

The other reason is that it prevents the windows from fogging up.

3. 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. Small hole at end of tape measure

It's there to hook onto nails or screws so you can measure safely without the tape measure slipping.

5. Bobble on winter hat

The bobble on your winter hat isn’t just a fashion trend. Historically, it was used to protect sailors when they bashed their heads.

6. Indent in the base of wine bottles

You’ve probably noticed the indent in the base of wine bottles. That’s to control the pressure while corking.

7. Tiny Cylinders in 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.

8. Little Pocket in 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.

9. Tab on rear view mirror

A lot of people tend to shift their rear view mirror by holding onto it from the side or at the top. Not a lot of people actually know the purpose for the tab on the rear view mirror.
It’s actually there to help you tip the mirror if you’re blinded by car which has its  high-beam lights on behind you.

10. Rivets in jeans

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.
As the top of pockets is a place where a lot of fabric is being stitched together, the pockets need to be attached with lots more strength to increase the overall tear strength, hence, the use of mechanical fasteners, called Rivets.

11. Holes on the side of converse

They’re actually used for ventilation and they let you tie your laces with more ankle support.

12. Little serrated edge on Tape Measures

Pretty obvious now that you see it, isn't it? Imagine trying to mark where your measurement is, but not being able to because your hands are currently both busy using a tape measure.
A little serrated edge would come in handy right then, wouldn't it?

13. Arrow next to your fuel gauge

The arrow that’s next to the pump symbol has a huge purpose. It’s actually there to tell you which side of your car the pump hatch is on.Believe me, it comes in handy when you're driving a rental car.

14.  Zigzag side of bobby pin

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.

15. Hole in the handle of pot

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.

16. 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.

17. Score Lines on blade

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.

18. Little Spike on Lids

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

19. 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.

20. Wings on Apple power cable

The wings flip up to give you something to wrap the cable around. Start by wrapping the thicker section of cable around the power block, then the thinner part of the cable around the wings, and secure the whole thing with the little clamp on the very end.

21. Tiny hole next to Camera

Another tiny hole you didn’t notice was at the back of your iPhone. It’s actually a microphone for when you’re taking a video with the back-facing camera.

22. Indent in Tic Tac

Maybe you've noticed the little indentation on the lid of a package of Tic Tacs before and figured it was there to tightly seal the container, right? Well, it also serves as a dispenser that gives you one Tic Tac at a time.

23. Little disc under the lid of a plastic bottle

Have you ever pried one of them out and found that your bottle still closes fine? What purpose could they possibly serve then?

They're there to create a seal that keeps everything in that bottle, both liquid and carbonation. Without it, that soda would go flat in no time.

23.  Blue side of an eraser

You've always heard that it could erase pen ink. Well, it can. But it only really works on very strong, thick paper.

The blue side is harder and more abrasive that the softer pink side, and takes a lot more paper off when you use it, which is why you've probably erased clean through the paper any time you've tried to use it.

24. Loop on the back of shirt 

We’re pretty sure that a few people know about this already, but the loop on the back of shirts is there so you can hang them on locker pegs. That way you can avoid creasing with no hanger handy.

Sources : buzzfeed , providr