I was thinking last night about substeading – seasteading in a submarine. However, one of the problems (well, I’d consider it a problem) that substeads like the one being built by ellmer have is the lack of naturally lit space for gardens and other such spaces that need natural light. Which got me thinking about Perspex as a building material…
10mil thick Perspex costs around £55 per square meter, according to my preliminary searches of the internet (http://www.diyplastics.com/perspexplexiglassprices.htm). 25mil Perspex is, naturally, more expensive at £134.5 per square meter.
Given it’s qualities – it doesn’t rot or rust, and is quite strong – I’m suprised I haven’t seen more discussion about it. If ther has been discussion about it, why was it discounted?
Terraformer, In fact the light conditions inside a submarine hull can be better than inside a sailing yacht .
Have a look at the video that shows the light conditions inside the 200 ton hull (18×4,6m) we are currently building
http://www.youtube.com/watch
http://www.youtube.com/watch
As we are located in tropical cartagena the light that comes in trough 8 viewports on the upper side of the hull is so strong that i actually got a sunburn while working inside the hull. Without having tested it with a “pilot garden” i would assume that growing plants is inside the possibilities.
But there are even better options to bring light inside the sub – for example using translucient concrete for the upper part. This means embedding optic fibers into the concrete matrix – you get something that looks like this:

Wil
concretesubmarine.com
European Submarine Structures AB
Terraformer, In fact the light conditions inside a submarine hull can be better than inside a sailing yacht .
Have a look at the video that shows the light conditions inside the 200 ton hull (18×4,6m) we are currently building
http://www.youtube.com/watch
http://www.youtube.com/watch
As we are located in tropical cartagena the light that comes in trough 8 viewports on the upper side of the hull is so strong that i actually got a sunburn while working inside the hull. Without having tested it with a “pilot garden” i would assume that growing plants is inside the possibilities.
But there are even better options to bring light inside the sub – for example using translucient concrete for the upper part. This means embedding optic fibers into the concrete matrix – you get something that looks like this:

Wil
concretesubmarine.com
European Submarine Structures AB
very interesting,
how would someone do that?
do you have links to tutorials?
do you think glass bead aggregate might work?
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