Facts x  Presents

10 Things You Did Not Know What They Are

Don't Forget like and subscribe Facts x and press the bell icon button below, Also leave your's Precious comment

1. Ever wonder what that little hole at the bottom of padlocks beside the key part are there for? Turns out, this tiny hole is there to help oil the lock if it becomes rusty. It also works as a drain to drain out any liquids that may go into the lock.

2. Have you ever wondered what the little pom pom on the tops of hats are for? Well, today they are used mainly for decoration, but back in the 18th century, French marines used to wear them for protection against the low ceilings of ship cabins. They were also used in uniforms for soldiers to help distinguish the branch of military a soldier was in.

3. You’re probably familiar with the diamond-shaped squares on the backs of most backpacks. Most people think they are purely aesthetic. However, these things are called “lash tabs” or “pig snouts” and are intended to hold extra gear on cords to be strung through the openings, ideal for camping or hiking.

4. You may be familiar with the tiny loop, which adorns the back of most dress shirts, but it isn’t just there for decoration. They are there so that you can easily hang them up in a closet without wrinkling them, a beneficial feature especially when you’ve run out of hangers.

5. You may think that the blue side on erasers is used to erase pen. If you’ve ever tried it, you already know that erasing ink only leads to a tear in your paper. The blue side of an eraser is actually meant to erase pencil on paper which is heavier or thicker than normal paper. It can also erase any smudges left over from the pink eraser.

6. Those who fly often may have noticed tiny little holes in the windows of the airplane. These holes are actually called “bleed holes,” and they are wedged between two other panes of acrylic material. Bleed holes are there to equalize the air pressure from the inside and the outside of the airplane.

7. Ice cream scoops tend to come in several different colors, but the reason isn’t just for the owner’s aesthetic preference. Ice cream scoops are color-coded and each color actually represents the size of the scoop, which is based on how many scoops it takes to fill a container measuring 32 ounces.

8. You may have noticed that a majority of door knobs are made out of brass. This is because brass surfaces can prevent bacteria from accumulating. Brass kills bacteria and essentially makes doorknobs germ-proof, which is ideal when they receive so many different hands coming into contact with them.

9. Jean lovers will be familiar with the little metal circles that adorn the pocket area. Most people think that these are snaps, but they are actually rivets. The purpose of these rivets is to reinforce the seam where pockets attach, an area which was prone to tearing in the past.

10. Have you ever wondered why there’s hole at the top of pen caps? Many people think the hole is to keep the pen from drying out, but it’s actually there for a more serious preventative measure. The hole is to lower the risk of suffocation, especially of small children. If someone chokes on the cap, the hole keeps the airway from closing up completely.