Why do high-speed passenger trains secretly carry hundreds of pounds of sand onboard at all times?
Why do high-speed passenger trains secretly carry hundreds of pounds of sand onboard at all times?

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Transport →Why do high-speed passenger trains secretly carry hundreds of pounds of sand onboard at all times?

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We simply bolted thousands of heavy steel boxes together and forced them to slither along parallel iron strips. It is beautifully primitive yet wildly…
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Japan’s bullet trains used to create deafening sonic booms when exiting tunnels. How did engineers finally fix this?
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Why did engineers redesign Japanese bullet trains to have incredibly long, strange-looking, duck-bill snouts?
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Long before regenerative braking was a corporate buzzword, Victorian engineers were using basic physics to save a quick buck. Many older stations in the…
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Soviet engineers in the 1970s strapped two massive turbojet engines from a Yak-40 passenger plane to the roof of a standard commuter train just to see how…
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