XDA: There is a phenomena called "Tunnel Boom" where high speed trains entering tunnels cause booming noises at the other end. Trains and tunnels have been designed to reduce this.

samedi 3 septembre 2016

There is a phenomena called "Tunnel Boom" where high speed trains entering tunnels cause booming noises at the other end. Trains and tunnels have been designed to reduce this.

There is a phenomena called "Tunnel Boom" where high speed trains entering tunnels cause booming noises at the other end. Trains and tunnels have been designed to reduce this.

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