But it can be said that hyperloop is a type of high-speed train. At speeds beyond around 400 km/h the air starts being a serious problem so it makes sense to put the train into a tunnel with lower air pressure if you want it to go faster. The practicality of that is questionable though, yes.
Gregory's Server
@jmaris LOL isn't that the subterranean vehicle from the movie "The Core"?
But it can be said that hyperloop is a type of high-speed train. At speeds beyond around 400 km/h the air starts being a serious problem so it makes sense to put the train into a tunnel with lower air pressure if you want it to go faster. The practicality of that is questionable though, yes.
@jmaris well… likely not impossible but expense as ****, hmm?