[ExI] ?Existential hysteria (John Clark)
atymes at gmail.com
Sat Aug 2 00:38:50 UTC 2014
On Aug 1, 2014 5:01 PM, "John Clark" <johnkclark at gmail.com> wrote:
> On Thu, Jul 31, 2014 at 1:35 PM, Keith Henson <hkeithhenson at gmail.com>
>> > On the other hand, have you not paid any attention to my talking about
space based solar for the last several years? If it is worth doing at all,
the eventual cost needs to get down around 2-3 cents per kWh. That takes
cheap transport to GEO.
> VERY cheap transport to GEO! Easier said than done.
So you say you want lunar manufacturing? I've been invited to give a talk
at the Lunar CubeSat Workshop in October about my launch service company
CubeCab, and one topic being considered is how us plus one of the CubeSat
propulsion modules being developed - say, Accion's or the CubeSat Ambipolar
Thruster - can let someone put a small payload on the Moon in under a year
(once CubeCab is in full service) for less than $1M. Only about 1 kg or
so, but what could you bootstrap from that?
(If you need more, you can send multiple, just so long as you can break
them into ~kg components. No bawwing about "but you can't pack large
optics" will be given credence: besides the ability to manufacture stuff
from regolith, people have been finding ways to fold lenses and use arrays
of individually small optics.)
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