If you are ever in London, this place is amazing:
https://www.postalmuseum.org/visit-us/what-to-expect/mail-ra...
London's Victorian Hyperloop: a pneumatic railway beneath the capital (2013)
11–16 of 16 posts
Re: London's Victorian Hyperloop: a pneumatic railway beneath the capital (2013)
#12All the problems from the hyper loop involve the energy of a vacuum. Why not accelerate the air in the tube in an actual loop? You reduce air pressure in front and increase it behind the car? Train cards could have baffles to allow for stops (let the air pass by the car).
The problem with the hyper loop is that it’s not clear it solves any real problems. For subway style intra city transit the rapid speeds and acceleration are hardly useful since you have many short travel segments. It’s a non starter there. For inter city travel, the biggest challenge is getting right of way and building infrastructure between the 2 cities. This is hard enough to do for regular HSR, which has far mor…
Damn you for going beyond first principles and actually thinking about why something that seems so simple hasn't actually been done before! /s
Re: London's Victorian Hyperloop: a pneumatic railway beneath the capital (2013)
#13Quoted post unavailable.
" Please don't fulminate. " " Eschew flamebait. Avoid unrelated controversies and generic tangents. " https://news.ycombinator.com/newsguidelines.html
yes, but unfortunately that is an exacting definition of the hyperloop compared to a device which actually was made and used regadless of it's commercial success and failings. The other IS snake oil.
Re: London's Victorian Hyperloop: a pneumatic railway beneath the capital (2013)
#14All the problems from the hyper loop involve the energy of a vacuum. Why not accelerate the air in the tube in an actual loop? You reduce air pressure in front and increase it behind the car? Train cards could have baffles to allow for stops (let the air pass by the car).
The problem with the hyper loop is that it’s not clear it solves any real problems. For subway style intra city transit the rapid speeds and acceleration are hardly useful since you have many short travel segments. It’s a non starter there. For inter city travel, the biggest challenge is getting right of way and building infrastructure between the 2 cities. This is hard enough to do for regular HSR, which has far mor…
> The problem with the hyper loop is that it’s not clear it solves any real problems.
The rest of your comment doesn't back that up. The hyperloop potentially solves the problem of air travel out competing railways even though air travel has enormous environmental costs and generally sucks due to overhead in transits and small cabins.
The problem with hyperloop is as you say actually building it. But that doesn't mean it doesn't solve a problem. It just means it has its own practical problems that aren't even technical.
Re: London's Victorian Hyperloop: a pneumatic railway beneath the capital (2013)
#15Earlier quoted context omitted.
" Please don't fulminate. " " Eschew flamebait. Avoid unrelated controversies and generic tangents. " https://news.ycombinator.com/newsguidelines.html
yes, but unfortunately that is an exacting definition of the hyperloop compared to a device which actually was made and used regadless of it's commercial success and failings. The other IS snake oil.
Maybe so, but sticking to the site guidelines takes precedence, and you can always make your substantive point without breaking them.
Re: London's Victorian Hyperloop: a pneumatic railway beneath the capital (2013)
#16Earlier quoted context omitted.
yes, but unfortunately that is an exacting definition of the hyperloop compared to a device which actually was made and used regadless of it's commercial success and failings. The other IS snake oil.
Maybe so, but sticking to the site guidelines takes precedence, and you can always make your substantive point without breaking them.
fine I'll not wish shame on people knowing/understanding better, I guess it pays to be more direct and say they 'should be expected to know better' directly if they're able to write/understand at this level