Biosphere 2
en.wikipedia.org
en.wikipedia.org
- It’s underlaid by a dense sprawl of machinery the size of a football field, which is constantly working to create and maintain the above biomes.
- The “lungs” are auditorium-sized rooms with a ceiling that’s free to rise and fall as air pressure changes due to temperature, reducing stress on the structure. You can walk up inside it, with air rushing past you in the connecting tunnel.
- There’s a library at the top of a short tower, maybe two stories. We were told the crew didn’t use it because food and oxygen deprivation kept them too weak to climb the stairs.
- Golf cart sized air vents create what really gets subconsciously recognized as natural wind, not artificial blowing. It was so pleasant that I’ve become determined to replicate it in my home someday.
- There wasn’t a predecessor, “biosphere 1” refers to Earth.
Maybe a ceiling fan is a good starting point. A 4 foot fan at low speeds generates something approximating wind, and in principle you can mount it on a wall instead of a ceiling to get a more natural wind direction. At higher speed you'd probably have to mount it in front of an opening of similar size as the blades to get wind instead of turbulent vortices though.
Perhaps only in the first experiment?
> The second closure experiment achieved total food sufficiency and did not require injection of oxygen.
I think this is a critical experiment, and there shouldn't be one. There is a nonzero chance, increasing every day, that these technologies will be needed ON EARTH from collapsing ecosystems and extinction-depleted biological interaction graphs.
Clearly that means it's time to declare the experiment over, right?
See: NiMH battery patent encumbrances.
More recently, trade objections by the tiny US solar manufacturing industry causing solar panel imports to dramatically slow while everyone waits to see what the feds think about foreign solar panels not meeting trade regs.
Was???
Arcosanti is/was a planned experimental town with a similar 'out of this world' vibe, but a very different approach.
They more or less built a tropical jungle in the the desert (Along with several other biomes, but the jungle is the most incredible). Over the decades it’s become overgrown and all the trees completely fill the dome to the ceiling, there are waterfalls annd rivers and all kinds of life in there, the humidity and everything is exactly like a real jungle; it’s borderline science fiction. Maybe science needs a few more artists because if we want to live on other planets without going insane it won’t be in sterile space capsules, it’ll look like Biosphere.
Strange project. There was clearly some valid science and engineering that came out of it, but lots of vanity, hype and backlash. The effort was founded by a billionaire who was either a visionary or a member of a personality-cult, or both, depending on your perspective. The biosphere residents - the biospherians - were lionized in the local press, similar to astronauts.
When they opened it up after the first year, the biospherians strode out in jumpsuits and lined up on stage. Lot of speechs by people in the project and unrelated luminaries.
My favorite memory is a great but somewhat random speech by Jane Goodall. (paraphrasing) "I know this experiment isn't supposed to be about the interpersonal dynamics of a small group in a confined space, but we should use this experience to think about other intelligent animals in confined spaces for long periods of time... like chimpanzees".
They have 2 SR-71s, one of which is the prototype YF-12 interceptor[1] meant to engage in air-to-air combat.
They also have a number of presidental aircraft, including the one JFK took to Dallas in 1963[2].
Surprisingly, they also have the Memphis Belle[3].
Been there a dozen times at least and still find something I haven't seen before.
https://en.m.wikipedia.org/wiki/National_Museum_of_the_Unite...
[1] https://en.m.wikipedia.org/wiki/Lockheed_YF-12
[2] https://en.m.wikipedia.org/wiki/Boeing_C-137_Stratoliner
[3] https://en.m.wikipedia.org/wiki/Memphis_Belle_(aircraft)
Vivian: I haven't heard anything about another Biosphere.
George: That's because it's underwater.
Vivian: This is insane.
George: Is it?
Vivian: Yes it it.
George: Well, it's all for charity, so what's the difference.
The Wikipedia article tries pretty hard to stick to neutral POV and I think does OK. It might undersell the "fraudulent science" aspect a little and oversell the "we meant well" but what it did teach me is that good science was done. I didn't realise how much value came out of it, around things like elevated CO2 and reef effects. I do suspect other kinds of experiment could have done that, but it's nice they at least achieved that. I'm glad the uni invested to turn it into a research facility albeit of a slightly different kind.
Some of the psychodrama is pretty torrid. People busting windows, mistaken belief of obligations to science, to their fellow scientists, to the project, to the truth. Bannon for goodness sake!! When they opened the airlocks for some convenience "we ran out of ramen and batteries" it became junky science fast. Why didn't they have some process around full disclosure for goodness sake? It sounds like nothing a decent airlock and double entry accounting on mass, gas, and energy can't deal with.
I am left suspecting double the size, quadruple the budget and with post biosphere#2 knowledge, massively more powerful batteries, PV, knowledge of materials science for things like outgassing, human and animal physiology, improvements in glass transmissiblity, you name it.. maybe third times the charm. That budget would have to be x10 for current costs, so scaled to 2023 dollars.
Finding people capable of engaging and remaining normies under scrutiny is eternally hard. Trueman show stuff. We're learning Antarctic base social dynamics have gone pretty shit in the last two decades, systemic bullying culture can become pervasive without a lot of checks. (According to some Australian media and administrative reviews)
But science isn't an all-or-nothing effort. It was only a big deal because the PR machine insisted there was absolute isolation. Needing to adjust the experiment slightly midway through doesn't invalidate the effort or the insights that came out of it.
They brought in way too much soil, so soil respiration consumed too much of their oxygen. And they didn't know the basic chemistry of building materials. Soils respired in oxygen and released it as CO2, and the CO2 went into the concrete walls of the buildings, as the buildings were new and the concrete was still curing.
As a result, they knew they kept losing oxygen, but because there was no corresponding rise in the air CO2 concentration, they didn't know where their oxygen was disappearing.
They brought in farm animals, and quickly found out they can't support them. They brought in too little plants, and later found out they need to start growing fast growing, easy to grow plants on almost all available soil areas, in an attempt to produce more oxygen.
It's a bit difficult to say, were these elementary mistakes because they didn't have understanding of the mass flows in the biogeochemical cycles in their ecosystem. Or was this pioneering scientific work, because nobody had such understanding at a time, and they were just in the process of finding out.
In 1970s, Russians did smaller and shorter experiments, with 1 to 3 man crews. They started by calculating, how much Chlorella algae and/or how much wheat you need to grow in order to produce enough oxygen for the people. They didn't have an expensive patchwork of copies of different types of ecosystems. They just had closed room with algae growing in tanks, and a small wheat field in a room under artificial lights.
> I don't like some of them, but we were a hell of a team. That was the nature of the factionalism... but despite that, we ran the damn thing and we cooperated totally.
Planted entirely in potatoes, that could grow 3800 calories per person per day [over the course of a year]. Given that is probably wasn't entirely potatoes, I'm wondering what sort of margin they had on their calorie production.