Avsnitt 9

Traveling between 135 and 190 miles per hour with an astonishingly high safety record, bullet trains can be found throughout Europe, Japan, and on the US eastern seaboard. How high-speed trains are propelled is rooted in fundamentals that haven't changed since the first electric trolleys appeared in the 19th century . We see how scientists are looking at new alternatives to electricity, including magnetic levitation that can move passenger trains 345 miles per hour and beyond!