Why did Guy de Maupassant not like the Eiffel Tower, but always dined there? Detailed answer

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Why did Guy de Maupassant not like the Eiffel Tower, but always dined there? Detailed answer

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Why did Guy de Maupassant not like the Eiffel Tower, but always dined there?

French writer Guy de Maupassant was one of those who annoyed the Eiffel Tower. However, he dined daily at her restaurant, explaining that this was the only place in Paris where the tower was not visible.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What is a sound barrier?

Have you heard the loud explosion-like sound as a jet plane flies overhead? This sound is produced when an aircraft breaks the sound barrier. What is a sound barrier and why does an airplane make such a sound? As you know, sound travels at a certain speed. The speed depends on the height. At sea level, the speed of sound is approximately 1220 kilometers per hour, and at an altitude of 11000 meters - 1060 kilometers per hour.

When an aircraft flies at speeds close to the speed of sound, it is subjected to certain loads. When it flies at normal (subsonic) speeds, the front of the aircraft drives a pressure wave in front of it. This wave propagates at the speed of sound. The pressure wave is due to the accumulation of air particles as the aircraft advances. The wave travels faster than the aircraft when the aircraft is flying at subsonic speeds. And as a result, it turns out that the air passes unhindered along the surfaces of the wings of the aircraft.

Now let's consider an airplane that flies at the speed of sound. The pressure wave in front of the aircraft does not appear. What happens instead is that a pressure wave forms in front of the wing (because the aircraft and the pressure wave are traveling at the same speed). Now a shock wave is being formed, which causes large loads in the wing of the aircraft.

The expression "sound barrier" was around before planes could fly at the speed of sound - and the expression was thought to describe the stresses an aircraft would experience at those speeds. This was considered a "barrier". But the speed of sound is not a barrier at all!

Engineers and aircraft designers have overcome the problem of new loads. And all we have left of the old views is that the impact is caused by a shock wave when the plane flies at supersonic speeds.

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