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SpaceX: Making Life Multiplanetary [video]

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Re: SpaceX: Making Life Multiplanetary [video]

#281
post #268

Earlier quoted context omitted.

According to wikipedia, there were 135 shuttle missions. So, a 1.481% failure rate in case anyone was wondering.

From a commercial, ROI standpoint, having %40 of your hardware eventually destroy itself is bad news. Especially since each time your whole enterprise stops for years until you find out what went wrong and fix it.

What?! All hardware failes eventually. If you get an average of 27 of flights from a single rocket, I'd say that's outstandingly good news!

Re: SpaceX: Making Life Multiplanetary [video]

#282
post #269
post #262

Earlier quoted context omitted.

I think you underestimate how quickly Mars could become an industrial powerhouse. It won't be starting at a Mayflower level of technology.

Why would it? It has less usable resources than loads of places on Earth that aren't used at all. Maybe if Mars is some sort of lawless territory it can become the libertarian haven some rich people want, and could trick some future slaves to get sent over there....

It still has enough available resources (that we know of) to do well. And getting people to emigrate won't be an issue at all. Think of it like nuclear technology; developing an atomic bomb isn't difficult at all since the physics has been done 70+ years ago. Now it's just a matter of engineering. Same with building up an infrastructure on Mars. Somethings like large foundries probably won't need to be replicated, since 3d printing will probably suffice, but off the top of my head, I can't think of any technology that is out of reach.

Re: SpaceX: Making Life Multiplanetary [video]

#283
post #157

Earlier quoted context omitted.

The Shuttle just made the mistake to not be a fully two stage system, it was a strange hybrid. SpaceX also figured out that vertical landing had many advantages compared to a plane.

The Soviet Buran shuttle had the right idea. It didn't have main engines and was launched with the Energia rocket, which could be used independently with other cargo as well. Also, it was capable of fully automated landing, unlike the American Shuttle

It still had the combination of being both human and cargo at once. The BFR would have a cargo, crew and tanker version.

Re: SpaceX: Making Life Multiplanetary [video]

#284

Earlier quoted context omitted.

> 5. Fully automated flight; perhaps no pilot. Almost certainly no pilot.

I agree; I can, however, imagine some kind of on-flight technician. Maybe.

Is he going to space-walk within the 10min window? I doubt you need a technician (and if you do, he's probably too late).

Re: SpaceX: Making Life Multiplanetary [video]

#285

Earlier quoted context omitted.

That is the issue you get when you do not spend money on science though. Compare the NASA budget to the US military budget. What if you would reverse that? Don't you think we would be better off in every way possible?

Of course. What about all the other things I mentioned as well? There are so many more--what about for profit prisons? As technology increases our suicide rate isn't really consistently declining. Our prison population has increased. Technology cant make those improvements alone. We need improvements in governance, culture and education for this to happen. Technology can be used for good or bad. By itself, it is just…

The visibility of suicide is declining. The suicide rate is up, definatly up. They are just "accidents" now - people driving into a truck for no apparent reasons.

Take a black marker, open your local newspaper page and mark any not reasonable accident as suicide (if you dont believe me join a fire-brigade and find out for yourself).

You have a little chess-board in the news every morning.

Re: SpaceX: Making Life Multiplanetary [video]

#286
post #281

Earlier quoted context omitted.

From a commercial, ROI standpoint, having %40 of your hardware eventually destroy itself is bad news. Especially since each time your whole enterprise stops for years until you find out what went wrong and fix it.

What?! All hardware failes eventually. If you get an average of 27 of flights from a single rocket, I'd say that's outstandingly good news!

Nobody is arguing that hardware doesn't eventually fail so I don't know why you mention that.

False. It's not outstandingly good news, not if we want to become multi-planetary in short order. We need to get to better than commercial airliner standards quickly.

Re: SpaceX: Making Life Multiplanetary [video]

#287
post #216

Earlier quoted context omitted.

International waters start more than 20km out from the coastline (12 nm)[1], that would be a very long ferry just to reach the spaceport, not just a short hop like shown in the video... [1] https://www.un.org/Depts/los/convention_agreements/texts/unc...

That's about half an hour at a not that fast 25 knots. 30 minutes from a city center. For any coastal city, that is likely to be no worse as the time to get to an intercontinental airport. Still means about 2h00 from NYC to Shangai, door to door. Quite an improvement over the 17hours today. Non coastal cities have a problem... In any case it takes care of most nimby as it's to far away for the neighbors to care. So r…

> That's about half an hour at a not that fast 25 knots. [...] no worse as the time to get to an intercontinental airport

yes you are right, I wasn't factoring in the fact that currently airline travel requires you to travel to an airport which is usually very far from the city centre.

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