XPost: sci.space.policy, sci.physics
From: fjmccall@gmail.com
jmfbahciv wrote:
>Fred J. McCall wrote:
>> jimp@specsol.spam.sux.com wrote:
>>
>>>In sci.physics Serigo wrote:
>>>> On 10/15/2016 4:35 AM, Fred J. McCall wrote:
>>>>> jimp@specsol.spam.sux.com wrote:
>>>>>
>>>>
>>>>>>>
>>>>>>
>>>>>> Except to support and grow a colony you need production which means big.
>>>>>>
>>>>>
>>>>> Well, eventually, but you don't have to START big. You do just what
>>>>> mankind has done every other time we colonized someplace. You start
>>>>> with small facilities and grow them over time, while reducing what you
>>>>> have to import (again over time).
>>>>
>>>> is that it ? start small and grow them ?? anything else ?
>>>>
>>>> your really not into this Mars thing are you.
>>>>
>>>
>>>There is no such thing as small when talking about a steel prduction
>>>facility carried in a rocket. The smallest excavator John Deere makes
>>>weighs about 2 tons.
>>>
>>
>> So about 2% of the cargo lift to Mars of one of Musk's colonization
>> rockets, then. And he's talking about launching around 10 of those
>> per 100 people going to the colony. Hardly a big deal.
>>
>
>Wouldn't redundancy make it a big deal? In a decade, 3D printers
>would be very useful.
>
So ship two. Musk is talking about roughly 10 cargo launches per 100
settlers. That's 1,000 tons of 'stuff'. How many excavators do you
need per 100 people. And yes, being able to make parts locally with
3-D printers will be useful, but you'll still have to ship the 'ink'
for a good long while.
--
"The reasonable man adapts himself to the world; the unreasonable
man persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man."
--George Bernard Shaw
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
|
