10 things that we see so often in our daily lives that we never know what they’re for. They’re actually very useful.
In our daily life, we often see some objects that seem ordinary, but when we think about it, we don’t know what they are used for, even though we see them all the time. There are many objects around us that seem ordinary and we use them every day, but we never know what they were designed for. Let’s take a look at 10 more things that many people may not know about their hidden benefits.
1. A small hole in the airplane window.
If you look closely, you will notice that airplane windows have a small hole in the center of the clear plastic sheet at the bottom of the window. This hole is called a “vent hole” and its function is to control the air pressure between the inner and outer glass, which reduces the pressure on the window and also prevents fogging or condensation on the เว็บพนันออนไลน์ UFABET สมัครง่าย โปรโมชั่นมากมาย glass.
Small buttons or rubber bands on jeans
If you look closely, jeans have small metal buttons attached to various points. These are called “rivets” and are used to reinforce the fabric in areas that receive the most force, such as around the pockets or waistband, to make the pants durable and less likely to tear.
Small hole on the side of the sneakers
Many people may think that the small holes on the side of the sneakers are for ventilation, but in fact, their original purpose is to help with special shoelaces, making the shoes tighter. It was invented from sports shoes for better use.
Groove at the bottom of a wine bottle
When you pick up a wine bottle, you will notice that the bottom of the bottle has a deep groove. This is to increase the strength of the bottle during the manufacturing process, making it less likely to break when pressured from the inside, especially in champagne bottles where the pressure from the gas bubbles is high. It also makes it easier to hold the bottle when pouring.
Small hole in the pen cap
Have you ever wondered why pen caps often have small holes? These holes are for safety reasons. In case someone (especially a child) accidentally swallows the pen cap. The small holes allow air to pass through and reduce the risk of suffocation.
A small button on the car’s gas tank cap.
Sometimes we open the fuel cap and see a small button or loop inside. This is not a decoration, but a holder for the fuel cap when filling up with fuel. It allows you to hang the cap without having to put it on the car or the floor, and also prevents loss.
Small hole on a ruler
Have you ever noticed that most rulers have a small hole at one end? This hole is not for aesthetics, but to make it easy for you to hang the ruler on the wall or in a tool storage area. Making it easy to store and not worry about it getting lost.
Small grooves on the F and J keys on the keyboard.
The F and J keys on keyboards often have small grooves on them. Which are intended to help touch-typers (who don’t have to look at the keyboard) find their index finger easier. Allowing them to type faster and more accurately.
Small holes on the edge of the rice cooker lid
Many rice cookers have small holes on the edge of the lid that are steam vents. When the rice starts to boil. These holes release excess steam to prevent the pressure in the pot from building up and also reduce the risk of overflowing rice water.
Chocolate box baking tray paper
The corrugated paper used to line the chocolate boxes is not only for aesthetic purposes. But also helps to keep the treats from moving during transpor. Prevents the chocolates from being crushed or chipped, and also helps to absorb excess moisture.