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Hyperloop

spacex.com

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Re: Hyperloop

#751

Post by sitkack »

smadge wrote: post #737
lmg643 wrote: post #180

Earlier quoted context omitted.

Interesting point that big government provoked the advancement of the hyperloop idea - counterintuitive idea, and clearly yes. but any idea like this will need government cooperation. The real test of big government will be how they respond to the hyperloop. magic response: "of course we may be wrong, we'll look into this immediately." and then they decide to build it. likely answer: praise, perhaps even an evaluatio…

Are you seriously saying that government wont consider Hyperloop because they are averse to innovation? On the contrary, "big government" has been the largest engine of innovation the past century. NASA has put people into orbit, and on to the Moon, has launched the first space stations, and made several robotic probes to other planets and the depths of space. Musk founded SpaceX which has managed to do a fraction of…

NASA total budget over its lifetime: $790.0 B in 2007 dollars. Just the book cost of the wars since 2001, http://costofwar.com/ 1.45 T not including future costs (debt payments, health care, net drag on economy) are roughly 2 more entire lifetime-NASAs. Wow. How much innovation have those two wars earned us?

How about large scale funding of science and technology is an "engine of innovation", whatever that term means.

Re: Hyperloop

#752

Post by smithian »

marshray wrote: post #534
yid wrote: post #102

> Risk of derailment is also not to be taken lightly, as demonstrated by several recent fatal train accidents. Interesting. No comment on the potential outcome of a passenger-filled capsule being ejected from a burst tube on high pylons at 350mph.

If the tube bursts so wide that the capsule could be ejected from it, the inrush of air would likely be so great that capsules probably wouldn't even make it out. The bigger concern would be that they could decelerate too quickly.

And if the tube breaks behind you, you'd just arrive sooner.

Re: Hyperloop

#753

Post by codeulike »

arrrg wrote: post #602
gsnedders wrote: post #455

Earlier quoted context omitted.

In general, most of those things vary massively between classes of trains, and there's no simple low-speed/high-speed distinction. Seat width varies massively between body shell designs, softness often depends on how long since the last refurbishment more than anything else, number of tables and luggage space are often based on the target market for the class, electrical outlets are more and more common (even on comm…

Dude. What are you on about? At least in Germany WiFi sucks and is not available everywhere – and even if it is you have to be lucky and actually be in a train that supports it. In general seats are most definitely more comfortable in longer distance trains. Yeah, you can find a seat that’s less comfortable in a long distance train than in a regional train, sure, but that’s hardly the point, is it?! And electrical ou…

Inter-city (ie medium/long distance) trains in the UK generally have wifi and power sockets

Re: Hyperloop

#754

Post by smithian »

rdl wrote: post #365
nazgulnarsil wrote: post #159

Earlier quoted context omitted.

Well it has to beat a standard commuter car (~$45 one way@34mpg) by a significant margin to be useful for consumers. What about freight?

It's kind of cool that Elon Musk is competing with himself here -- Hyperloop vs. a 3rd generation Tesla (which should be even cheaper than $45 one-way per car, including depreciation and electricity.) The real problem, even once you add self-driving cars, is I-5's limited capacity.

Isn't the real problem that it sucks to drive 7 hours?

Re: Hyperloop

#755

Post by dkrich »

checker wrote: post #324
dkrich wrote: post #231

The main reason why air travel continues to be the most practical, cost-effective means of high-speed transport is that the politics involved in connecting two points with a transit system are enough to make you lose faith in humanity. Take for instance, the DC metro system. There is an expansion underway to extend the system west to Dulles Airport, about 30 miles or so from downtown DC. A huge project, no doubt, but…

I'm not saying that fighting won't bog a hyperloop down, but the Silver Line fighting was largely due to who was going to pay for it. You had Federal funds, VA state, each VA county, Dulles, and Metro all with their fingers in the pie. This hyperloop only has one state and a few stops, and it looks to be much cheaper than the HSR so it should be an easier pill to swallow. They both have right-of-way issues, but what…

They both have right-of-way issues, but what land-based project doesn't?

That's my main point- land-based projects are a nightmare to coordinate. I would actually think the DC metro would be one of the easier to get done because it receives federal funding.

Re: Hyperloop

#756

Post by raldi »

untog wrote: post #142
raldi wrote: post #132

Earlier quoted context omitted.

Doesn't look any more cramped than the back seat of a car.

...which is pretty cramped.

And yet somehow people manage to ride in them for 30-minute trips.

Re: Hyperloop

#757

Post by smadge »

sitkack wrote: post #751
smadge wrote: post #737

Earlier quoted context omitted.

Are you seriously saying that government wont consider Hyperloop because they are averse to innovation? On the contrary, "big government" has been the largest engine of innovation the past century. NASA has put people into orbit, and on to the Moon, has launched the first space stations, and made several robotic probes to other planets and the depths of space. Musk founded SpaceX which has managed to do a fraction of…

NASA total budget over its lifetime: $790.0 B in 2007 dollars. Just the book cost of the wars since 2001, http://costofwar.com/ 1.45 T not including future costs (debt payments, health care, net drag on economy) are roughly 2 more entire lifetime-NASAs. Wow. How much innovation have those two wars earned us? How about large scale funding of science and technology is an "engine of innovation", whatever that term means…

That's what I'm advocating, that the government spend more money on science and technology. The government is able to take risks in investing in unproven technologies and sciences where industry can't, because they aren't concerned with profit. I'm not an apologist for the wars.

Re: Hyperloop

#758

Post by drharris »

LockeWatts wrote: post #685
robomartin wrote: post #675

Earlier quoted context omitted.

European unions do not behave as American unions do. They seem to know how to balance their wants with the idea of allowing their host to survive, grow and succeed. American unions tend to extract as much blood as possible out of their hosts. They are really selfish, to the point of causing terminal damage. Look at the cities they've killed off.

Can you take your political opinions and shove them down a dark hole somewhere? Most people are here for a discussion of the technology, not your rhetoric.

It's not really an opinion so much as fact. Labor unions have proven to be beneficial only for the members of the union and politicians. If you had ever done business around them, you'd agree.

Re: Hyperloop

#759

Post by lennel »

seanmcdirmid wrote: post #506
dragonwriter wrote: post #448

Earlier quoted context omitted.

> The article goes on to say that Acela gets 3 million riders in the very dense east coast NY/Washington corridor but in less-dense California they were projecting a ridership around 10x of Acela's (!). And...so? California has dense areas in the north and south and a big (relatively) empty gap between them. California HSR is designed to connect those dense areas. The overall density of the state (or the corridor) is…

The question is how many people really need to travel between the Bay Area and SoCal? Right now it is about 12 million trips a year. That would increase if the link is cheaper, but to what economic gain? These two areas are strongly connected economically, not like NYC and DC are.

NY Boston however accounts for a lot of Acela traffic (based on my experience).

Re: Hyperloop

#760

Post by ash »

jacquesm wrote: post #726
Retric wrote: post #604

Earlier quoted context omitted.

Depends on how strong the tunnel is. Assuming your taking 3/4 atmospheric difference your starting at ~11 pounds per square inch add in a 3-5x safety factor and that tunnel would be one tough son of a bitch. Not to mention it's got to be really close to a strait track so your more dealing with scraping forces than a direct strike.

Does the minimum bending radius of the tube match the centerline of the highway? If not that might be a real problem.

Hyperloop proposal contains detailed map of the whole route. Sometimes it follows the highway, other times it deviates from it.
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