Can I Create a Self-Regulating Biosphere in My Room?

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Discussion Overview

The discussion revolves around the feasibility of creating a self-regulating biosphere within a controlled environment, specifically a glass greenhouse. Participants explore concepts related to astrobiology, ecological balance, and the challenges of sustaining life in a closed system, including potential applications in space environments.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant proposes building a 5x5x3 foot airtight greenhouse to create a self-regulating biosphere with cyanobacteria and other organisms.
  • There is a suggestion to monitor air content and introduce organisms that convert oxygen back into carbon dioxide to maintain balance.
  • Another participant raises concerns about the implications of a non-gravitational environment if the biosphere were launched into orbit, suggesting initial experiments should be conducted on Earth.
  • One participant mentions the need for artificial gravity and proposes a cylindrical design for space applications.
  • Self-adjusting mirrors are proposed as a solution for providing necessary light for photosynthesis within the biosphere.
  • A later reply references past attempts at creating similar biospheres, noting that they have faced challenges and suggesting further reading on these projects.

Areas of Agreement / Disagreement

Participants express a mix of enthusiasm and caution regarding the project. While there is general support for the idea, significant concerns about practical challenges, such as gravity and light requirements, remain unresolved. No consensus is reached on the viability of the proposed biosphere design.

Contextual Notes

Participants highlight various assumptions, such as the need for nutrient-rich soil and the effectiveness of self-regulating systems. There are also unresolved questions about the feasibility of sustaining life in a closed system and the impact of environmental factors.

Eraniamayomii
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If you didn't know before; I would like to be an astrobiologist when I grow up. I plan to go to college for a degree in a fundamental science, and then apply to Ames University to pursue astrobiology.

Due to this reason, I have been reading into astrobiology. I am currently through a book written by my favorite author of all time "Ben Bova". The book is called FAINT ECHOES, DISTANT STARS.

This book has inspired me to attempt a very challenging project. I know that this project will take financing, extensive research, and determination, but if it succeeds, it could move us a step closer toward independent settlements off this planet. I'm sure this idea has been thought of, but in any case, at least I will get a head start on this years science project!


It may not come as a surprise to you that my idea is to create a completely independent, self regulation biosphere.

My idea is to make a completely air tight 5 foot, by 5 foot, by 3 foot, airtight, glass greenhouse. The bottom of this greenhouse would be organic and inorganic compounds with all the necessary nutrients for cyanobacteria to prosper, and reproduce.

To monitor air content, there would be gauges connected to the inside. Also, there would be a device that can start a fire inside. This way, we can make sure the green house is mainly carbon dioxide.

Then we would let the bacteria turn the carbon dioxide rich air into more oxygen rich air. Then we watch the bacteria die off as they poison themselves with the oxygen they produce.

Next, we introduce some type of organisms into the biosphere that can turn oxygen into carbon dioxide. This would help to regulate each other. To many cyanobacteria, and there isn't enough bugs to give them carbon dioxide, so they die off until there is equilibrium. They can balance each other out. Kinda like gaia theory.

I'm not quite sure all the details on how to make the ground stay nutrient rich. I think if we chose easily decomposable organisms and bacteria to introduce into the biosphere, they can decompose enough to feed each other, correct?

Also, we can add self regulating mirrors to equip onto the biosphere in order to keep up photo synthesis.

We could go as far as equiping a self heat and radiation system to protect the organisms, and put it into orbit to see if they can stay self regulating.

This is my idea. I thought I'd call it the Gaia green house, or something along those lines.



The information I need now; is how I can get the soil to keep itself nutrient-rich for the bacteria, and how to keep enough food to keep the bugs alive. I'm sure I need much more, but this is a start.

Thanks for reading.



Love,

Eraniamayomii


P.S.
My father has been looking for a project to do with me. I know that if I work out a good plan, he will pay, and help me to get all the necessary materials. I just need a complete plan.
 
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Wow.. it sounds like you have quite an idea there! I am highly impressed by your ambition to want to turn your project into a reality, dispite still being in high school (correct?).

Have you considered, if you were to "launch this into orbit," that it would be in a non-gravitational enviornment. I'm not sure if that would have any important ramifications or not. You're basically wanting to create a psudoboisphere that can sustain itself in space? I would recommend researching and experimenting in a conrolled, earthly (yet enclosed) enviorment to try to re-create the effects of being outside the earth. For instance, applying some sort of light filter to the psudo-biosphere in order to re-create the type of light that would be reaching it from the moon's distance to the sun.
 
Dear eNathan

Yes. Though I'm a little scared, I will be going into 9th grade soon. Lol.

Thank you for bringing up the gravity problem. I think that would definitely is an obstacle due to the fact that the biosphere would have to be prism shaped so that it can rotate around an axis to create artificial gravity. This would completely reshape the model.

I think it would be best to start out with the flat version on Earth 1st. Once equilibrium has been achieved, and proven successful; then we can recreate the model as a cylinder in order to create the necessary artificial gravity.


On the subject of light; I believe that self adjusting mirrors would solve this problem. I do agree that artificial light could work, but this would make it harder to make the biosphere independent. The energy source would obviously be light, so either way, light is necessary and mirrors, I feel, would serve there purpose.



Love,

Eraniamayomii
 
Good luck with this- it's been tried a few times and failed:

http://en.wikipedia.org/wiki/Biosphere_2

Read that in detail.

http://www.naturesodyssey.com/ecospheres-c-15.html?k=ecosphere&se=AdWords&p=0.20&gclid=CKGQhJ_6wpUCFSWlQAodxzajPw

Requires light but it's claimed to last many years.
 
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