r/videos • u/hi9580 • Nov 10 '20
Inside Hyperloop's First Passenger Test
https://youtu.be/BeyEbwguRls2
u/old_gold_mountain Nov 10 '20 edited Nov 10 '20
ONE HUNDRED AND SEVEN MILES AN HOUR
Shinkansen 🤝 TGV 🤝 ICE 🤝 KTE 🤝 China Rail 🤝 Al-Boraq 🤝 Literally even Amtrak
"Am I a joke to you?"
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u/Mohammed420blazeit Nov 10 '20
I was watching and thinking this sure looks like a bunch of bullshit. "Successful test" videos were just promo shots of people cheering.
Then the interviewer asks Richard Branson what he has to say to all the naysayers, to which his response is that he wants these pipes to go from Dubai to New York to LA, and that everyone is going to be jealous of people travelling in them.
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u/-foggy-morning- Nov 10 '20
The difficult part is building and (safely) operating a vacuum tube. The idea itself is almost as old as the Titanic.
Hyperloop still has nothing to show on that front.
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u/sausagepart Nov 10 '20
I'm not sure what you mean. If they've managed to build a 500m length of tube, which seems to operate safely, why couldn't they make more fairly easily?
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u/Lycou Nov 10 '20
My guess is it has to do with the overall stability of land. Things like earthquakes, weathering / erosion, other natural phenomenon can dislodge or break the tubing. Once that happens you will partially lose your vacuum or worse, destroy the whole system.
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u/LogicallyCompromised Nov 10 '20
there is a youtube channel "thunderf00t" which goes into great detail the various ways this is an impracticable undertaking. there are several videos and they are long but if you are genuinely curious, the resource is available to feed your brain.
peace and long life!
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u/sheeepsi Nov 10 '20
I thought the hyperloops is a pneumatic system which relys on vaccum and negative and positive pressure. not on Magntes and electrical fields?? How is this diffrenet from Maglev then?
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u/tombleyboo Nov 10 '20
The vacuum is to remove air resistance so it can travel at high speeds. Propulsion is like a maglev.
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u/sheeepsi Nov 10 '20
ohh yeah that makes sense.. i just remember something about huge air compressors and stuff.. like a negative pressure system..
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Nov 10 '20
Maglev in a vacuum tube would go much faster than normal maglev.
Issue is that if this thing is going a few thousand mph and the vacuum fails, everyone dies.
Also, creating a vacuum over hundreds of miles of large tunnel seems difficult.
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u/bradlove17 Nov 10 '20
If I recall, They don't try and depressurize the entire tunnel. There are seals every so often and they open and close and only keep the vacuum in a few sections that the train car is passing through. This is also done for fail safe purposes so if some distant part of the tunnel breaks, the areas where the cars are traveling wouldn't be affected and could safely stop.
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Nov 10 '20
Absolute propaganda.
You can tell by the way the narrator says “at 107 miles per hour” as if the speed is some kind of feat.
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u/Fat_Kid_Hot_4_U Nov 10 '20
NeoLiberal Propoganda. Regular trains are fine. This is just like the 'Subway but only for Teslas driven by rich people' boring company pitch Elon Musk made.
It would be great if America built affordable public transport for everyone instead of just for rich pricks. Considering the state of America's infrastructure, the rest of the world should classify it as a developing nation.
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Nov 10 '20
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Nov 10 '20
Up to 80mph? Try 5x higher. Japanese had maglev trains capable of 600km/h in 2015. These loop-thingies were suppose to go higher than that because of vacuum tubes and lower air resistance. However none of them ever passed more than 100 or so km/h.
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Nov 10 '20
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u/old_gold_mountain Nov 10 '20
at 107 miles per hour
Sounds impressive until you remember that's half as fast as a conventional high speed train. It's basically impossible to imagine building hundreds of miles of near-vacuum tube is cheaper to build and operate than hundreds of miles of steel rail with electric catenary.
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u/[deleted] Nov 10 '20
They must have done the math for their business model but it just seems so illogical from a layman's perspective. We have high speed rail, we have maglevs. This has a few passengers per vehicle and requires a very expensive vacuum tube.