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The Astronomy Thread
- Thread starter Araxen
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Guest, it's time once again for the massively important and exciting FoH Asshat Tournament!
Go here and give us your nominations!Who's been the biggest Asshat in the last year? Give us your worst ones!
Ukerric
Bearded Ape
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The mass of the black holes always felt odd compared to the galaxy around them. A lot of people tried to model the accretion of such black holes in a galaxy and it never came out good.
This looks more like the formation of solar system, where the sun forms first while the lighter planets form around it...
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My brother-in-law just got laid off from JPL because Congress is so deadlocked that they haven't made appropriations for NASA's 2024 budget yet. Lack of guidance is basically shitcanning the entire Mars sample return mission.
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Read about that today, Sorry about your bro in law. I am falling apart and I want to see people on Moon/Mars before I kick the bucket. Get it done dammit!
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Kharzette
Watcher of Overs
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So I've been looking into Wolfram physics, and one of the core concepts is that space and time are discreet, so tiny chunks of both. Update order is semi random and there's a finite number of threads of the universe.
Relativity still works though, so near a rotating event horizon you get space very stretched out and time slowed from an outside observer. This immediately made me think of the variable deltatime problem in videogame physics.
When the update step time of games change, the curvature of game accelerations can vary quite a lot from a pure non discreet curve. As an example, you could stand on the docks in Qeynos in everquest 2 facing the sea, spin your camera towards town and jump, and because of all the texture and normal map loading as it loads up the town, you'd get a huge deltatime causing your jump impulse to be huge. You could jump about 20 or 30 feet this way.
This same problem would affect gravity in wolfram physics near a rapidly spinning event horizon. This might stretch out the curve that is normally distance squared for gravitation if the initial gravitational impulse determines the curvature of the spacetime drag.
Doesn't explain wide binaries though.
Relativity still works though, so near a rotating event horizon you get space very stretched out and time slowed from an outside observer. This immediately made me think of the variable deltatime problem in videogame physics.
When the update step time of games change, the curvature of game accelerations can vary quite a lot from a pure non discreet curve. As an example, you could stand on the docks in Qeynos in everquest 2 facing the sea, spin your camera towards town and jump, and because of all the texture and normal map loading as it loads up the town, you'd get a huge deltatime causing your jump impulse to be huge. You could jump about 20 or 30 feet this way.
This same problem would affect gravity in wolfram physics near a rapidly spinning event horizon. This might stretch out the curve that is normally distance squared for gravitation if the initial gravitational impulse determines the curvature of the spacetime drag.
Doesn't explain wide binaries though.
Big Phoenix
Pronouns: zie/zhem/zer
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Story of the American space program since the end of Apollo.
Replaced by the abortion known as the shuttle with a key design feature that was never once ever utilized along with be incredibly unsafe
The 1980s saw the failed development of the X-30 to replace the Shuttle
The 1990s saw the failed development of the Venture Star to replace the Shuttle
The 2000s saw the failed development of Constellation program to succeed the Shuttle
The 2010s saw the failed development of the Orion program to succeed the Shuttle
Now in the 2020s we are seeing the shitshow that is SLS/Artemis
All the while near 60 years ago we had a great working rocket that could launch 100 tons into LEO. You really cant put into words how utterly retarded the people in charge of NASA and the politicians associated with it have been. Imagine how America/Humanity would look today if we simply kept usign Saturn Vs for 5 decades.
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Kobayashi
Ahn'Qiraj Raider
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I assume he's talking about the rapid recovery of a satellite from orbit - reference mission 3b.
Really good video on it:
I wish i could find it, someone had an excellent long-form critique of NASA and everything post-Apollo. Their biggest complaint was the space stations because the constant servicing missions meant essentially nothing else could be really worked on.
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In this case it's the politicians. They just can't get off their assess enough to tell NASA how much money they do or don't have to work with.
Kobayashi
Ahn'Qiraj Raider
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It's always the politicians, it's not that they can't, it's that they want this to happen to stir up people. The agencies that are generally liked such as NASA or the National Parks always are cut first. You never see massive layoffs at the IRS or Homeland Security announced.
I would consider the administration level in NASA to be a politician as well. I'd say there's a very good chance they could have gotten creative with their budget, but the goal was to get a headline that gets people upset, who cares about the people it impacts or how it actually sets things back.
Big Phoenix
Pronouns: zie/zhem/zer
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That's it. But even the general object retrieval capability wasn't really used. I think they brought back 3 or 4 satellites iirc in total.
The Shuttle was just an insanely stupid design. Heavy payload lifter, passenger transport and a object retrievel rolled into one. Constellation was at least smart in that it broke out the heavy lift and passenger roles into different rockets.
When the directors act as yes men supporting whatever corporate welfare project Congress is pushing out the directors are part of the problem.
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Furry
🌭🍔🇺🇦✌️SLAVA UKRAINI!✌️🇺🇦🍔🌭
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The big bang theory is the result of a century of mathematicians sniffing their own farts. A whole shitload of stuff makes no sense if you accept the universal truth that red shift = moving away. It's far more logical and simpler to say that light redshifts as it travels immense distances in the universe. It gets rid of the need for dark matter and all sorts of other mumbo jumbo like space expanding, and explains a lot of stuff that the big bang theory just can't account for, like the abundance of lithium.
Sure, it opens up lots of new questions of its own, like how does new hydrogen get created in a now infinite universe, or why would light naturally lose energy as it travels, but I'm okay with not knowing to answers to things like this, rather than not knowing the answer to lots of space magic necessitated by overly complex mathematical calculations that don't even match observable reality.
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Kharzette
Watcher of Overs
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I watched a vid awhile back that goes over the dozen or so predictions the big bang makes. Over the years I believe it said all of them but one have been falsified. The only thing it gets right is the observed amount of lithium I think.
You guys don't understand academia at all if you think physicists wouldn't literally murder each other for an opportunity to prove the Standard Model and big bang theory wrong. They'd win all the Nobel prizes for the next century and be immortally famous.
The problem is, warts and all that shit really is the best explanation we have for the data we have. I don't know what you watched, but I can guarantee none of that is "falsified" and whoever produced it either is misrepresenting nuance or just wrong.
The problem is, warts and all that shit really is the best explanation we have for the data we have. I don't know what you watched, but I can guarantee none of that is "falsified" and whoever produced it either is misrepresenting nuance or just wrong.
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Furry
🌭🍔🇺🇦✌️SLAVA UKRAINI!✌️🇺🇦🍔🌭
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I don’t know what predictions you are referring to, but it’s wrong about lithium too.
meStevo
I think your wife's a bigfoot gus.
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Finally got around to working on my LEGO Saturn V... it's wild how much goes into this stuff. This is the top of the second stage.
My father in law found some newspapers from the Apollo 11 landing, so going to mount it w/ the stages apart on the wall along w/ those newspapers framed.
www.etsy.com
Otherwise, would be tempted to get the unofficial launch tower from somewhere.
I need to pick up this set:
My father in law found some newspapers from the Apollo 11 landing, so going to mount it w/ the stages apart on the wall along w/ those newspapers framed.
Wall Mounting Kit for Displaying Apollo Saturn V Rocket - Etsy
This Wall Decor item by JASFDesign has 2697 favorites from Etsy shoppers. Ships from United Kingdom. Listed on Aug 5, 2024
www.etsy.com
Otherwise, would be tempted to get the unofficial launch tower from somewhere.
I need to pick up this set:
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Kobayashi
Ahn'Qiraj Raider
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The Saturn V was a pretty cool build for the most part, but I found it to be a little repetitive at times (I guess that makes sense based on the structure).
Breaking it apart into stages is pretty cool, I think I'm going to do that with mine. I'm going to use command strips though.
That etsy kit looks a little superior, but if you have a 3d printer available, it appears you can maybe get something similar:
Lego Saturn V Wall Mount by MOEman365
Each stage only needs one support if mounted as shown in the picture. But the mounts are designed to be unobtrusive if mounting the rocket horizontally, though the larger stages will probably need a second mount to support them.
www.thingiverse.com
One word of warning: I've had mine sitting in my office windowsill temporarily since I've moved and the parts have already started to discolor from the UV exposure. If you'll be putting it in a room that get some natural light, you might want to install some protective film:
UltraCool-IR8360 IR and UV Blocking Solar Film
Check out the deal on UltraCool-IR8360 IR and UV Blocking Solar Film at Decorative Films, LLC.
www.decorativefilm.com
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