There are many overlooked particulars about things surrounding you that actually serve a useful purpose you had no idea about.

Get ready to exclaim.

Who knew?

Hey, let's practice.

Okay, work on that.

Here we go.

Black grating on the microwave window prevents microwaves from escaping.

Without it, your food wouldn't cook properly, and all nearby Elektronik devices would turn off.

If you ever had problems with popping chocolates from the box.

Look at those little holes around them.

They're there to help you.

If you push a hole right next to the candy, it'll jump out easily.

Back in the day.

It used to be difficult to get the edges in the middle of a pie.

Equally baked.

That's why bakers decided to make a hole inside doughnuts.

Hey, what's your favorite pastry?

Let me know.

In the comments below.

See that small magnetic lock on a fuel hose at the gas station every time someone drives away with the gas nozzle still attached to their car?

Yes, they do it.

The lock detaches the hose automatically.

Now when you take a sip from a coffee cup with a lid.

It decreases air pressure inside the cup, so air tries to get in.

The tiny hole on the lid allows air to enter that way so liquid can smoothly pour out the main whole and more on beverage leads.

The small buttons on them let restaurant workers and customers to understand what's in a cup near each button.

There's a name.

Just look at which one is pushed down.

A long time ago, people would sometimes shape off small amounts from coins made of precious metals to sell while passing the coins for the real deal.

To make sure a coin wasn't tampered with, grooves on the edges appeared.

That's why dimes and quarters have them stripes on headphone jacks, air for insulation, the silver or gold bands being contacts for the respect of wires.

One strike means there's a mano signal to getyou stereo sound, and three strikes means you're out.

Now that's baseball.

Three stripes means there's also a built in microphone.

The numbers on the fruit stickers tell you how exactly they were grown.

If there are four digits and the first is four or three, the fruit has been sprayed with pesticides.

If there are five digits and the first is nine, the fruit has been grown organically.

If there are five digits and the first is ate, the fruit has been genetically modified.

Is all that clear?

Yeah, me neither.

The pattern of little black dots on car windows minimizes possible distractions for your eyes.

Also, since the black part known as frit, naturally gets warmer than the clear part, they prevent the windshield from deforming by spreading the heat evenly when you're on your way back to the car.

After bagging up everything you bought, use loops on a shopping cart toe.

Hang the bags.

Now softer items like bread, eggs, fruit and veggies won't get squashed by the heavier goods.

The grooves in the escalator steps helped push up objects like bags and garbage, not letting them get trapped between the steps.

Also, they provide easier walk off, since when they reach the lower or upper end of the line, the steps become flat.

Oh, by the way, the grooves in the elevator depend on what kind of music you're listening to, so music is groovy er than others.

The first golf balls were absolutely smooth.

But then players noticed that scuffed and cracked balls perform much better.

That's why now all golf balls have dimples that make them travel almost twice farther, though the tab under a rear view mirror in your car works great for an air freshener.

It's really a switch that goes up and down, flipping one way, and you're in a daytime driving mode, seeing everything crisp and clear.

If you flip it the other way, the reflection gets dimmer, toning down the glare from headlights behind you.

Those small raised bars of rubber you can see on most new tires are there to tell you when it's time to replace the tires.

If those bars are worn out, it's not safe to drive anymore.

If you don't have anyone to hold the other end of your tape measure when you try to measure something, tap a nail into it.

Now simply hook your tape on it, using the tiny hole.

All tape measures have.

Ah, hole in the center of a spaghetti spoon exists not only to strain water but also to measure a portion of spaghetti.

That whole fits exactly one serving.

If you grampa beverage and a glass bottle at the base.

Your drink will get warmer because of the body heat.

That's why most of them have long necks.

Carrying a bottle by the neck keeps your beverage chill.

Besides, holding it that way is just easier, however.

Don't do this with your kids.

The square shapes bone that goes with Mcflurry helps to mix the ice cream toppings through the desert.

The spoon hooks directly into a machine and spins around.

However, don't do this with your kids.

Ever forgot which side your gas tank was on?

That's what a small arrow or a triangle on your dashboard is.

Four.

If it points left, the gas tank door is on the left.

If it points right, that's right.

It's on the right.

All right.

Padlocks.

That air used outside quickly get out of order because of the ring.

See this little hole in the bottom?

It's made for pouring engine oil inside.

Do this and the key will again turn in the lock without any difficulty.

The small disk under the lid of plastic water and soda bottles creates a seal that keeps both liquid and carbonation inside.

Without it, your soda would go flat pretty fast.

Many doors have knobs made of brass because brass prevents the spread of germs.

That little hole on the top of a lollipop stick is there to make it hard for the candy to come off of this day.

When the melted candy is poured into the mould, some of it will seep into the hole and harden.

You keep banging the bottle of a glass catch of jar, but nothing's coming out.

Here's a little tip.

Turn your ketchup bottle at an angle and tap on the middle of the neck.

In many fast food restaurants, customers fill tiny folded paper cups to get a portion of ketchup or mustard.

Here's the news.

The cups are supposed to unfold and turn into small paper platters.

Toe Hold a great deal.

More sauce.

You can enjoy beautiful sky views from a window seat on the plane.

Thanks to this little hole, it prevents windows from fogging and also regulates a huge pressure difference between the inside and outside of the plane.

An extra handle on a jerry can was invented so that two people could carry it.

The triple handles help to distribute the weight evenly, plus the middle handle is useful.

If you have to bring empty jerry cans, you can easily take two with one hand.

The pom pom at the top of some winter hats appeared back in the day for sailors to protect their heads.

When they were out at sea and the waters were rough, they had something to cushion, hitting heads on low ceilings below decks.

Some carry folded up cash in that tiny extra pocket on the side of genes, but it was originally designed for carrying a pocket watch back in the 19th century.

May I storm?

I used chewing gum.

They're very handy.

You margins you use now is a space for notes were a way to save written information from rats and mice.

These rodents were famous for eating around the edges of everything they could find, including paper.

That little hole on the handle of a pot or frying pan isn't just for hanging them on the wall during cooking.

Put the end of your utensil in the hole, and it'll be propped over the pot to save your kitchen from extra mess.

The blue or any other dark color bristles on your toothbrush are meant to remind you when it's time to get a new one.

If you see that the bristles have become pale, change the toothbrush or its head.

Despite the common myth, the blue part of the eraser is still for a pencil, not a pen, but written on a paper thicker than lined one.

As a bonus, it also gets rid of smudges left by the Pinker racing.

By the way, if you can still remember what the frig is, 10 points to Gryffindor or hey, if you learn something new today, then give the video alike and share it with a friend.

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