Have you ever noticed how Japanese bullet trains have those really long noses? You might think it helps them go faster, but it’s actually not true because the bullet trains in China and Europe are even faster than the Japanese trains and do not require really long noses. You see, The secret to this lies in Japan’s landscape. Most of their train routes are full of tunnels with high-density populations around them. Back in the 90s, when their regular bullet trains passed through these tunnels, they used to create really loud sonic booms. The aerodynamic design of these noses significantly cut down the noise levels.
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