Mike Hord <mike.hord <at> gmail.com> writes:
> Having water delivered is cheating.  Food delivery is marginally
> less so.

Water can be made by inverse osmosis in place, perhaps using the bicycle as
power source. In a real closed circuit it would be recovered to a great extent.
 
> Also, I'm wondering about the WiFi connection- they cavalierly
> mention that he used the sub's WiFi to go online without any
> idea of how weird the concept of WiFi signals penetrating water
> is.

That's easy. You can see the cable on the surface to the buoy. It probably also
carries WiFi. Under water in the habitat, he used a waterproof laptop. So the
network was probably connected using the WiFi system *in* the habitat.

Anyway I calculated that the algae coil weighs about a ton (1000kg). That
deletes the possibility to use such a device in near future manned missions in
space - it would require the lifting a ton of water into orbit per person. On
the other hand, with multiple crews (reuse) like the ISS it could be
interesting. Adding 4 tons of water to a 200 (?) ton behemoth is not impossible.
And it would likely be less balky than their present Russian Roulette oxygen
generator I think.

Peter P.


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