When the Wright brothers designed the first airplane in 1903, they couldn't have imagined that the aviation industry would become an incredibly profitable business 100 years later. Moreover, aviation has made a huge leap forward. While the Wright brothers' plane flew only about 35 meters, a modern Boeing 787 can fly over 16,000 kilometers on a single tank of fuel.
If you've ever flown before, you might have noticed that flight attendants, when greeting passengers, often keep their hands behind their backs. For those who enjoy intriguing facts, the reason behind this behavior is quite fascinating.
Planes are a whole separate world. With their own incomprehensible language spoken by pilots and flight attendants, with their strict rules and not always clear signs.