Alternative Island 3

On Sat, 23 Oct 2004 06:24:29 -0000, victoriatangoman
wrote:
(...)
> I think it would certainly be an interesting effect, to look up and
> see a sun shimmering through a lake. To dive down and for the light to
> get brighter. To dive to the bottom, put your face against the glass
> and look into the abyss of space. More practically, it does solve a
> space problem quite neatly, but as you see from my questions above, my
> concerns are centered on the engineering.
(...)

I have already seen this idea somewhere, but someone had the following
valid objection: any large body of water will quickly became opaque
due to the accumulation of sediments and proliferation of algae and
other living stuff. Of course you could clean you lakes periodically,
but I think that would make this option kind of costly compared to the
alternatives.

Incidentally, this makes me think that the classical O'Neil Cylinder
design is prone to the accumulation of dust, and that would also
obscure the windows given enough time..