/sci/ - Science & Math

>>3801372

>stop the press, its a fucking suboceanic biodome built by the atfuckinglantians

Why this attitude? I have more than just a picture. You can read about Lloyd Godson's Biosub 1 and Biosub 2 habitats here: http://spacecollective.org/rshostak/757/The-BioSub-underwater-living

>>3772652

>No, you can't tan yourself with supplements.

I know I'm being trolled here, but he wasn't under the light to tan, but to stimulate the creation of vitamin D in his body. This deficiency can be corrected with vitamins today.

>>3772509

>How deep underwater is the habitat?

15 feet. The maximum depth at which one can live without needing to decompress in order to surface is about 30 feet, assuming the habitat is supported up off the ocean floor and the hatch depth is around 21 feet. This creates an interior pressure of 1.6atm, the threshold beyond which nitrogen saturation will occur. It's possible to live much deeper in an ambient pressure enclosure, but beyond 100 feet you must use heliox instead of normal air, and the maximum pressure a human can endure and remain healthy is something like 3,000 feet. The deepest and longest an aquanaut has ever lived was 2,300 feet for 143 days.

>>3772658

>wait, can you even live normally with air as dense as water

Yes. Once you've equalized the pressure in your eardrums, you don't even notice the difference in pressure.

Pic: Biosub 1. Biosub 2 was used in the German legoland aquarium so the public could spectate as Godson broke a world record for generating his own power while living underwater. Biosub 3 will be stationed on the Australian great barrier reef.

>>3473671

>Looks like I do. What's that?

Biosub 1. Lloyd Godson's first habitat. Pic related.

>Ideally, it'd have a curved perspex panel in the roof to let light in. Realistically, it's probably going to have a porthole on the side. Either way, there'll be ways of looking out.

Remember, if you have a heat gun, you can soften plexiglass to the point that it can be bent into a curved shape that matches the hull curvature. This is how the Sublimnos windows were made in the first pic.

>IIRC it worked out as needing about 40 tonnes of ballast before being filled, which could be the most difficult part.

Make a "ballast tray". A platform around the bottom portion of the habitat with a rim, so you can shovel sand into it. Presto, free ballast. That's how Baylab does it.

By popular demand now playing Sealab 2021 and Sea Quest DSV.

>>3287576

Easy. You need a hull of some kind which can be nearly anything as an ambient pressure habitat doesn't need to withstand any pressure differential, an electric oil-free air compressor, a dehumidifier, some LED lights, a shitload of heavy ballast material (sand works well) and welding skills.

Just make sure the depth of the hatch on the bottom is no deeper than 21 feet and that there's a 1-way valve passthrough in the air hose. You'll also want a USB co2 meter for your laptop, comes with software that lets you keep tabs on the CO2 levels.

Pic related, Lloyd Godson's original Biosub 1 design.

>>3231673

>>RE biosub: That's smart. Do you have any idea why the system wasn't strong enough (eg did he need more algae)? Pulling oxygen straight out of water with that little power is more miraculous than magnets.

Biocoil systems are about as compact as it gets for bioregenerative (plant based) life support, as blue green algae is as efficient as it gets when it comes to scrubbing CO2 and producing more O2. Even so, you need a lot of algae per person, meaning a large coil. He calculated this size would be sufficient, but real world conditions turned out to be less forgiving than they were on paper. A larger coil would likely have done the job, but it wouldn't have left much room inside the habitat for Lloyd himself.

This is precisely why I set to work on a bioregenerative life support design that can function outside of the habitat without requiring its own costly enclosure. This is why, on anon's recommendation, I set up a paypal for those wishing to donate to my patent fund.

>>Ahah, that's interesting. How did you end up staying on Levithian?

By happenstance I met the missions leader, and when I found out what he was up to, I mentioned Hampture as I thought he'd get a kick out of it. He did, we had a long convo about the history of undersea living, and before I knew what had happened, he chose me to occupy a recently vacated seat on the 2012 Leviathan mission.

In order to feel that my presence is justified, I've been working on a new type of life support system (mentioned earlier). I'll be testing the prototype during the 2012 mission and with any luck it will outperform Godson's while taking up 100% less interior space.

A schematic of Godson's low cost amateur habitat.

>>2385541

>>I'm fairly certain that that is the documentary I watched a few months ago.

It hasn't aired yet. You might've seen a preview.

>>Looked to me like he didn't really get bent, but still had a reaction to the slight decompression.

Godson was only 14 feet down. You can have a hatch depth of 21 feet and still surface without any decompression or side effects. Godson did have to go on O2 following Biosub 1, but that's because near the end of the mission the CO2 levels had (very slowly) built up beyond his ability to remove it. The biocoil alone was ultimately insufficient.

>>>/r9k/12620356

This is a job for /sci/

Pic unrelated

He's not a scientist, just an avid diver and overall regular dude, but he's repeatedly proven that with today's affordable, off the shelf technology, anyone can build an underwater home.

This is his first, BioSub, famous because it had self sufficient life support; Godson still needed food delivered, but his exercise on the cycle powered batteries that kept grow lights running, which drove photosynthesis in blue-green 'spirulina' algae in something called a 'biocoil' (that drum in the back) which provided all the air he needed for weeks.

I think what it comes down to is accessibility to the everyman. Space is the final frontier, but not the next one. Ordinary people cannot live there. They cannot homestead.

An ordinary guy, hobbyist diver, built this habitat out of a shipping container. The main hurdles that held normal people back in the sixties was the cost, bulk and fragility of aircon, dehumidifiers, silicone, the (absence of) acrylic and so on. With all of those barriers removed, a regular guy was able to make livable space underwater on a budget. Not much, but a place to stand, to sleep, to fish for his lunch and dinner, and most importantly to breathe without surface support. Living underwater is rapidly becoming something anyone can do. Which means that the sea floor, not space, will be the next frontier that man colonizes.

Space is next, so don't get antsy, just wait your turn.

i've actually been thinking about this A LOT.

the big problem is really escaping orbit. if we had an efficient way to get stuff up there, the rest would be cake (it would happen almost automatically through the free market).

we need to start building a space fountain right this minute

OP;
http://www.lloydgodson.com/index.html

Pic related. He spent 12 days inside that, although I do believe he began complaining about the Algae not being able to keep up with his breathing. Still, a worthy achievement.