Airplanes flying in the vast sky are not only a symbol of human wisdom and courage, but also a magical tool to connect the world and explore unknown territories. However, beneath this pride from the peak of technology lies some little-known secrets.
Today, I'm going to take you into the world of airplanes, exploring the unpopular knowledge that makes us understand this great invention in a new way.
1.Aircraft struck by lightning do not crash
You may think that flying in a thunderstorm is a matter of life, as if it can be struck by lightning at any moment, leading to all kinds of dire consequences. However,This is actually a misconception
Airplanes aren't as fragile as you might think, in fact, they've been carefully designed and tested to withstand the impact of lightning.
What you may not know is that according to statistics, every plane is struck by lightning on average once a year, or every 3,000 hours of flight.
But since 1967, not a single plane has crashed because it was struck by lightning. This is facilitated by the shell of the aircraft, which is made of metal or other conductive materials. This design allows the current of lightning to be conducted from one end of the aircraft to the other without causing any damage to the internal structure of the aircraft.
2.The most unclean place on an airplane is not the lavatory
When it comes to the dirtiest place on a plane, you might immediately think of the toilet. However, the truth is that the number of bacteria on the tray table far exceeds that of the toilet, reaching up to 8 times the amount of bacteria in the toilet.
This often-overlooked fact reminds us that the next time we fly, we should probably have some disinfectant wipes on hand.
3.Oxygen masks on airplanes can only provide oxygen for 15 minutes
In an emergency, the oxygen masks on the aircraft provide oxygen for about 15 minutes, which is enough time for the pilot to lower the aircraft to an altitude where he can breathe normally.
Rather than being connected directly to an oxygen tank, these masks produce oxygen through a chemical reaction that ensures passengers stay awake in times of crisis.
4.The black box is not black
Despite being called the "black box", the aircraft's flight data recorder is actually a striking orange color, which is done to make it easier to detect at the scene of the accident.
This unit stores critical flight data and cockpit conversations and is an invaluable resource for accident investigations.
5.The pilot and co-pilot cannot eat the same food
For safety reasons, the pilot and co-pilot of the aircraft are forbidden to eat the same food. This regulation is intended to prevent food poisoning from both pilots at the same time and to ensure flight safety.
6.The most dangerous time for an airplane is when it takes off and lands
Statistics show that 80% of aircraft accidents occur during take-off and landing. These moments require extreme concentration from pilots, and any tiny misstep can lead to catastrophic consequences.
7.In-flight meals are pre-made dishes
On the plane, the food we enjoyed was actually prepared in the kitchen on the ground, and after some heat treatment, it was presented to the passengers.
However, the taste and nutritional value of these foods may be compromised due to limitations in how they are stored and heated. Although its taste and nutritional value may be compromised, its deliciousness and care are still worth savoring.
8.There will be a small hole in the window on the plane
The windows on the plane are cleverly designed to resemble the carvings of nature. Its unique three-tier structure, like a delicate seashell, protects the comfort and safety of passengers. The innermost glass, like a fragile inner wall of a shell, carefully protects the sight of passengers; The outermost layer of glass, like a hard shell, resists the wind and rain of the outside world.
In the middle of these two layers of glass, there is a small hole, which acts like a breathing hole in nature, allowing outside air to enter, balancing the internal and external air pressure. It is the existence of this small hole that prevents the window from bursting due to the difference in air pressure, just like the instinct of marine creatures to regulate air pressure, providing passengers with a sense of peace of mind.
In addition, this small hole acts as a thin vent that allows the air in the middle to flow. It effectively prevents water vapor from condensing on the window, so that the window remains clear and transparent at all times.
The above are 8 trivia facts to unveil the mystery of airplanes. Every time you board a plane, as you sit in the crystallization of human wisdom, through the clouds, and explore the unknown, you may be able to think about the science and stories behind them. Thank you for reading and look forward to the next amazing trip.
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