The Astronomy Thread

Kharzette

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We will eventually be forced to expand into space or find some way to mine the mantle. I've been designing a survival style game with more realistic details on crafting and as said above there's a huge chain of dependencies.

Alot of processing uses big electrically charged tanks to separate compounds for purification. The anodes on those are always some crazy rare metal. Ruthenium, Rhodium, Palladium, Osmium, Iridium etc. Eventually we will run out of that stuff, and then no more making Sodium Hydroxide, which means you can't make Sulfuric Acid, which means you can't make Cyrolite which means you can't make Aluminum.

The byproducts of the above stuff has a whole other chain of dependencies. Detergents, drugs, explosives. Making stuff is complicated.

Would we ever lose the knowledge to make things? I guess it depends on if the internet is lost. You can go on wiki right now and see diagrams and the basics of how to set up a steel mill. The little details that make it all work are probably in old men's heads though.

Youtube videos as well. You can find videos on the Czochralski method for making silicon wafers, and even find people giving lectures on it. Actually doing it though? I think it would take many years of trial and error.

It really is all moot if humankind as a whole is getting more degraded and stupid over time. All the stored knowledge is wasted if you don't have the brain power to make use of it. As earth's population rises you get an occasional genetic glimpse at past glory, but we need engineering to raise the average.
 
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Mudcrush Durtfeet

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It's more likely that NASA will put out a request for proposal to enable a mars mission that just so happens to align with what is feasible from spacex. This isnt as incestuous as it sounds and is very common and practical.

This is doubly true if spacex carries the entire Artemis program and it goes as well as everything else spacex has done.
And you know the BO will sue because SpaceX has an unfair advantage and does the service at half the price.
 
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Mudcrush Durtfeet

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We will eventually be forced to expand into space or find some way to mine the mantle. I've been designing a survival style game with more realistic details on crafting and as said above there's a huge chain of dependencies.

Alot of processing uses big electrically charged tanks to separate compounds for purification. The anodes on those are always some crazy rare metal. Ruthenium, Rhodium, Palladium, Osmium, Iridium etc. Eventually we will run out of that stuff, and then no more making Sodium Hydroxide, which means you can't make Sulfuric Acid, which means you can't make Cyrolite which means you can't make Aluminum.

The byproducts of the above stuff has a whole other chain of dependencies. Detergents, drugs, explosives. Making stuff is complicated.

Would we ever lose the knowledge to make things? I guess it depends on if the internet is lost. You can go on wiki right now and see diagrams and the basics of how to set up a steel mill. The little details that make it all work are probably in old men's heads though.

Youtube videos as well. You can find videos on the Czochralski method for making silicon wafers, and even find people giving lectures on it. Actually doing it though? I think it would take many years of trial and error.

It really is all moot if humankind as a whole is getting more degraded and stupid over time. All the stored knowledge is wasted if you don't have the brain power to make use of it. As earth's population rises you get an occasional genetic glimpse at past glory, but we need engineering to raise the average.
Mining the mantle... I don't even...

You lost me at the beginning, bro.
 

Kharzette

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Mining the mantle... I don't even...

You lost me at the beginning, bro.
It is something I've looked into, mainly for gamey reasons. There have been several attempts at digging super deep holes and none of them went well. Getting industry into space is probably easier.

The gamey reason I looked into it is because I loved Starwars Galaxies mining. They never actually said it was mantle mining but the resources would "shift" every few days the way I would expect mantle convection to mix and move concentrations around. You could locate concentrations of minerals with a scanner type device and eventually get to the hottest spot. Once there you could place down a heavy mineral mining installation, throw in some "power" and come back in a day or two and collect the stuff.
 

Mudcrush Durtfeet

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It is something I've looked into, mainly for gamey reasons. There have been several attempts at digging super deep holes and none of them went well. Getting industry into space is probably easier.

The gamey reason I looked into it is because I loved Starwars Galaxies mining. They never actually said it was mantle mining but the resources would "shift" every few days the way I would expect mantle convection to mix and move concentrations around. You could locate concentrations of minerals with a scanner type device and eventually get to the hottest spot. Once there you could place down a heavy mineral mining installation, throw in some "power" and come back in a day or two and collect the stuff.
Oh, it was in SWG? You have now convinced me of it's RL feasibility.

...

Said no one, ever.

***

Otoh if we ever get a severe asteroid strike (hi Bennu?) maybe the crater will enable better access to the mantle for future civilizations.

No, not actually a good thing. :p
 

Kharzette

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Well in gamey terms it was more for planets with thinner crusts. It is an engineering challenge. Need better heat resistant materials etc. And someone that just wants to do it to say they did. It would probably never pay off financially.
 

BrutulTM

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It seems funny to me that we don't make more use of geothermal energy. I'm sure there are reasons it's difficult but it seems like an inexhaustible heat source right below our feet should be able to solve all of our energy problems.
 

Kharzette

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Do those use the basic heat exchange electricity generation that a RTG uses? Or do they turn steam turbines or what?
 

Big Phoenix

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Do those use the basic heat exchange electricity generation that a RTG uses? Or do they turn steam turbines or what?
Geothermal is always steam. Thermal generators arent very efficient power generation wise.
But honestly outside of a mission to Mars, or a close by asteroid, manned missions arent something NASA should be putting their energy into. The James Webb Space Telescope is launching in November and is going to be an incredible science instrument, one that hopefully like the Hubble, provides generations worth of data and inspiration, as well as cutting edge scientific discovery and observation. The JWST is theoretically worth tens of manned missions in terms of scientific advancement and important measurements that lead to further understanding of our universe as a whole.
With a competent space program JWST would be a blip on the radar. You would be taking advantage of Lunar craters that are eternally dark instead of sending a insanely expensive rube goldberg satellite that as a 10 year shelf life that you cant service because you lack the capability to out to the L2.

Its pretty damn sad to think of all the highly advance observatories weve launched that ended up as orbitng junk because we lacked any capability to service them.
 

Cybsled

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It seems funny to me that we don't make more use of geothermal energy. I'm sure there are reasons it's difficult but it seems like an inexhaustible heat source right below our feet should be able to solve all of our energy problems.

It comes down to how deep you have to drill/dig. In geologically active areas, you don't have to go far. In areas not like that, you have to go far deeper and then bring that energy back up to the surface. It isn't as economically feasible in a place like Idaho vs. Iceland.
 

BrutulTM

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You can't blame her really. Imagine being stuck in a tin can with two disgusting Russians.
 

Oldbased

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1629169110252.png


Blue Origins lead lunar engineer. Haha
 
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meStevo

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lol, really no noncompete at Blue Origin? I think I had one and I was just an IT admin at an Amazon subsidiary.
 

Oldbased

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lol, really no noncompete at Blue Origin? I think I had one and I was just an IT admin at an Amazon subsidiary.
Noncompetes are rare in space fields because they are so specialized they would be career ending.
 
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Captain Suave

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Captain Suave

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It's not only that, it is lead rocket scientists can refuse to sign them and still be hired. How many lead lunar specialists do you think are on the market?
Yeah, it's like my cousin at SpaceX. "Good luck finding another MIT MS in EE/CS with a decade experience coding aerodynamic simulation for atmospheric reentry."
 
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