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by gorkonsine 3276 days ago
How would you rotate a habitat on Mars, without having a major engineering challenge due to the existing gravity? Citation needed. And how would it not be necessary? 1/3g gravity is surely not healthy for humans long-term. Citation needed.

How is Planetary Resources a scam? Citation needed.
1 comments
Retric 3276 days ago
Ahh, keep talking long enough and it's obvious you don't know what your talking about.

We can easily do 20g on earth: https://en.wikipedia.org/wiki/High-G_training

1g is much easier in mars gravity as you can simply tilt the chamber at an angle while spinning it. Training centrifuges generally have the chamber on a hinge so you automatically get the correct angle.

Now, sure you lose some energy to friction. But, not all that much further, we have a lot of experience dealing with very heavy rotating objects for decades. EX: Power plants.

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gorkonsine 3276 days ago
A small centrifuge is not a viable place to have an entire colony to live in. Sure, you can stick someone in a high-g centrifuge by himself for a little while, but I'm talking about a habitat that people live indefinitely. Equating the two clearly shows you don't know what you're talking about.
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Retric 3276 days ago
> having a major engineering challenge due to the existing gravity?

Rotating a habitat is a hard problem in space or on a planet. But, Mars's is gravity would make the problem easier not harder. The atmosphere might be a problem, scale might be a problem etc etc, but gravity is not. Further, there may be little need for 24/7 1g, perhaps a tiny room to work out in is enough, perhaps you should sleep in 1g or perhaps 1/3 is enough for sleep etc.

But, again gravity is not the problem. And yes such a massive fundamental failure in understanding is a clear sign of incompetence.

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gorkonsine 3276 days ago
Rotating something that size in Mars' gravity is far more difficult that rotating something in space. Clearly, you're far less competent than you think you are.
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Retric 3275 days ago
We literally already rotate large structures for amusement.

https://en.m.wikipedia.org/wiki/List_of_revolving_restaurant...

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monocasa 3273 days ago
To be fair, they intentionally rotate slow enough as to have no perceivable g forces.

The example on that list that I had been to most recently is the Westin in Atlanta.

It's 57M in diameter and it's upper floor spins at once every 30 minutes. Plugging that into Mω²r, you end up with 0.0000354084g.

Not exactly the best example.

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