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spud100 Profile
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Registered: 12-2017
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Plan for orbital manufacturing assembly


https://www.cnbc.com/2018/06/22/made-in-space-created-a-robotic-factory-to-build-satellites-in-orbit.html


Last edited by spud100, 6/23/2018, 4:37 pm
6/23/2018, 12:47 pm Link to this post PM spud100 Blog
 
RedQ Profile
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Registered: 11-2017
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Re: Plan for orbital manufacturing assembly


Humans in space have no chance until we master gravity creation. Once that's done, the sky is no limit.
6/23/2018, 4:16 pm Link to this post PM RedQ Blog
 
spud100 Profile
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Re: Plan for orbital manufacturing assembly


Like many scientists you overestimate the impact of breakthroughs, and underestimate the impact, of straight forward improvement in the knowledge we already possess. I am quoting physicist, Gerry O'Neil!

1. Better rockets like BFR
2. Artsunatov Elevators that rise of 23 thousand miles-made of graphene.
6/23/2018, 4:35 pm Link to this post PM spud100 Blog
 
Spikosauropod Profile
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Registered: 06-2007
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Re: Plan for orbital manufacturing assembly


Now that's what I'm talk'n about! The future is upon us. In situ extraterrestrial manufacturing will change everything.
6/23/2018, 4:41 pm Link to this post PM Spikosauropod
 
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Re: Plan for orbital manufacturing assembly


You guys under estimate the issue of gravity. We need gravity.
6/23/2018, 6:19 pm Link to this post PM RedQ Blog
 
spud100 Profile
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Re: Plan for orbital manufacturing assembly


Yes indeed
There have been proposed fixes

1. Is using a small centrifugal force beds a little bit a day

2. Building spacecraft and especially, giant scale space wheels and cylanders, or setting asteroids spinning--all simulation earth 1G gravity. These would negate your gravity fear.

3. My idea--nanotech to constantly build bones and muscles and organs in zero-G to be able to handle return to Earth.

Synthetic true gravity like in Larry Niven's police web's, are still not even on the drawing screens yet.
6/23/2018, 6:35 pm Link to this post PM spud100 Blog
 
Spikosauropod Profile
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Registered: 06-2007
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Re: Plan for orbital manufacturing assembly


We can never control gravity because gravity is not a real force. When you are drawn to an object by gravity, you are actually just falling in an additional dimension.

For gravity in space, we will need to use acceleration--either in a circle or in our direction of travel.

However, we can probably exploit weightlessness in manufacturing. Free fall will make it much easier and cheaper to move heavy parts around.
6/23/2018, 7:50 pm Link to this post PM Spikosauropod
 
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Re: Plan for orbital manufacturing assembly


quote:

We can never control gravity because gravity is not a real force. When you are drawn to an object by gravity, you are actually just falling in an additional dimension.



Well, that's interesting but almost certainly wrong. Whence we understand gravity, we leave adolescence. You guys just don't get it.
6/23/2018, 9:30 pm Link to this post PM RedQ Blog
 
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Registered: 06-2007
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Re: Plan for orbital manufacturing assembly


We don't need to get away from gravity. Once we move into the space between planets, the effect of gravity from anything is negligible. Even acceleration toward the sun at one AU is only 0.0058 m/s/s. That is less than 1/1000 of the gravity you experience on the surface of the earth.

However, if we want to live in a one g environment, the simplest and lowest energy solution is a wheel station. Once you spin it up, it takes no power to keep spinning. Also, the wheel can double as shielding.



Last edited by Spikosauropod, 6/24/2018, 1:04 am
6/23/2018, 11:40 pm Link to this post PM Spikosauropod
 
greendocnowciv Profile
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Registered: 11-2017
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Re: Plan for orbital manufacturing assembly


True be dat wheel.

But gravity is there. Call it a string of words instead doesnt help, unless there is some math that makes that work. But it still would mean at most "our understanding of gravity is this, but no, its really this issue regarding dimensions and..."

There's been a theoretical case for at least a little while now beyond the basic quantum gravity idea of a...

" force of gravity via graviton bosons."

https://en.wikipedia.org/wiki/Graviton

~~~~~~~~~~~~~

I speak, of course, of a buncha other quantum gravity theories:

"...a quantum theory of gravity may be needed to reconcile general relativity with the principles of quantum mechanics, difficulties arise when applying the usual prescriptions of quantum field theory to the force of gravity via graviton bosons.[5]

The problem is that the theory one gets in this way is not renormalizable and therefore cannot be used to make meaningful physical predictions.

As a result, theorists have taken up more radical approaches to the problem of quantum gravity, the most popular approaches being string theory and loop quantum gravity.[6]

 Although some quantum gravity theories, such as string theory, try to unify gravity with the other fundamental forces, others, such as loop quantum gravity, make no such attempt.

Instead, they make an effort to quantize the gravitational field while it is kept separate from the other forces."

https://en.wikipedia.org/wiki/Quantum_gravity

~~~~~~~~~~~~~~~~~

I've listened to a Physicist named Lee Smolin discuss Quantum Gravity before and I look forward to some others explain it much closer to my level of understanding.

Because I can listen and read, and remember some phrases - but I can use Stats to explain my lack of ability. I can remember what to do and what some things mean in Stats, and apply some ideas, but I never go beyond basics because I am not at an "intuitive level" with it and am not drawn to try to study it further. And happily, the basics of Stats are enough for what I need in my life.

The physics is much more impenetrable to me. I trust the mathematicians completely because unlike the stats, I cannot even do the basic work.

Last edited by greendocnowciv, 6/24/2018, 12:39 pm
6/24/2018, 12:30 pm Link to this post PM greendocnowciv Blog
 


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