Another blow to manned Mars exploration.

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Re: Another blow to manned Mars exploration.

Postby Workingman » 04 Jul 2022, 03:05

Can't find anything from Axiom about a spinning artificial gravity module never mind a full blown spinning space station..

Mars gravity is O.4 Earth gravity and in itself would cause musculoskeletal and cardiovascular problems; they would be on top of the microgravity problems not alleviating them.

From the calc: to obtain 1g for a 200m radius unit the speed at the periphery would need to be 115km/h, below 200m the numbers go off the chart. The green zone band is quite narrow.

A concept is one thing, making it work is another - "Beam me up, Scotty!" It has been done at the quantum level but the big machine is just waiting for, how is it put, ah yes, the engineering scale to catch up. Easy peasy.
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Re: Another blow to manned Mars exploration.

Postby Suff » 04 Jul 2022, 10:38

Engineering at scale is never easy. Just like getting out of Earth's atmosphere is never easy.

But assuming we have to use atmospheric escape vehicles as space transfer vehicles just makes the whole thing more ludicrous. It's like sticking wings on a bus and calling it an airliner.
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Re: Another blow to manned Mars exploration.

Postby Suff » 11 Jul 2022, 16:23

And here was I talking bollocks as usual.

Seems someone else likes the idea, although slightly different implementation.
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Re: Another blow to manned Mars exploration.

Postby Workingman » 11 Jul 2022, 17:13

Yes, total bollocks.

This gives some, err, technicalish details. And here is another pretty video, claiming how this dream will work.
They propose building a living facility on the Moon called Lunar Glass which will be close to 400 metres tall and complete a full rotation every 20 seconds.

Nothing about what power will create the spin or keep it going indefinitely. It will just happen that 100s of thousands of tonnes of mass will just rotate. They also forget to mention that the lower down the egg cup you go the less "gravity" is felt.
The multi-story surfaces of the rotating buildings are surrounded by liquid water and land with trees, creating a mini-biome with water and carbo cycles to sustain human populations.

And on barren moons and planets all this water and stuff will come from where???
"Our plan represents important technologies crucial to ensuring human beings will be able to move to space in the future," he added.

They caution that constructing the full-size facilities will take around 100 years, although they hope to build a simplified version on the Moon by 2050.

No it does not, it is not a plan it is a pretty video - a dream, and what is a simplified version when it's about? Is it the 400m one rotating once every 20 seconds as mentioned early on in the article, or something smaller that really will not work?
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Re: Another blow to manned Mars exploration.

Postby Suff » 11 Jul 2022, 17:25

It is a challenge to resolve the issues with human body functions which react to a lack of gravity.

It is from these ideas that real workable models are made. It is how we progress. There was a lot more than just gravity in there, there were some novel ideas only touched on in a few far fetched presentations.
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Re: Another blow to manned Mars exploration.

Postby Workingman » 11 Jul 2022, 18:27

Best laugh for a while.

https://futurism.com/the-byte/japanese- ... al-gravity

Birds flying, a speedboat. people walking in the gardens - so that implies an earth like atmosphere. A bullet train!!! No McDs or KFCs so not real... just a dream.

How the presenters kept straight faces is a mystery.
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