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 ...

Japan's famous Shinkansen bullet trains are celebrated for their speed, efficiency and punctuality, but they once faced an ...

Japan's Shinkansen trains faced loud tunnel booms which disturbed local communities. Engineers studied kingfishers to ...

Add Yahoo as a preferred source to see more of our stories on Google. A breakthrough in high-speed rail design could make the world's fastest trains safer, quieter, and greener. Chinese researchers ...