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[-] Bye@lemmy.world 16 points 1 year ago

Ok so this video convinced me hyperloops are a bad idea because vacuum is difficult to maintain

well then what’s a good idea that can go faster than airplanes? What am I supposed to be excited about instead? I love trains and the hyper loop sounded like a really fast train, which is cool.

[-] infeeeee@lemm.ee 23 points 1 year ago

Maglev, they hold the current rail speed record with 603 km/h: https://en.m.wikipedia.org/wiki/Railway_speed_record

By comparison the cruising speed of a current airliner is ~900 km/h

[-] amju_wolf@pawb.social 10 points 1 year ago

The actual speed that matters should be calculated including any on- and off-boarding, so planes aren't all that fast for short distances (considering most people probably need at least an hour before flight in the airport and at least like 20 minutes after arrival).

[-] mayonaise_met@feddit.nl 5 points 1 year ago

At least 20 minutes is not enough to get to a place you want to visit though, while trains in many places ride straight into the city.

[-] andruid@lemmy.ml 1 points 1 year ago

Some more modern cities air ports near the centers as well

[-] erwan@lemmy.ml 3 points 1 year ago

Maglev is expensive both to build (because you need magnetized rails) and to operate (uses more energy overall than a shinkansen).

There is a reason why Japan built a prototype decades ago but never built a commercial line.

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this post was submitted on 14 Sep 2023
63 points (88.9% liked)

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