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Viral video reveals the surprising secret behind the world's fastest trains — here's what one observer noticed
An observant birdwatcher is to thank for bullet trains that don't produce astounding booms that resonate for hundreds of feet every time they pass through a tunnel. It's a fascinating story ...
A breakthrough in high-speed rail design could make the world's fastest trains safer, quieter, and greener. Chinese researchers have found a way to slash the deafening "tunnel boom" shock wave caused ...
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