This will only ever been seen in a cartoon. Stars do not form from "gas" "collapsing" under its own weight. Stars are lit electrically, they are the focus of a z pinch which is why they form axially along massive birkeland currents in space like beads on a string.
Is there software you can download that tries and do this? or is the computational overhead so massive that it's silly to think you could get your pc to pound out an animation like this in any reasonable amount of time?
That cloud is represented by ALLOT of particles and to crunch out an animation like this you'd need to recalculate each particles vector in relation to other particles (bacicaly pointing it towards the center of mass). And you'd have to do this for every frame, the more frames per second the more accurate results you'll get. For a simulation like this you need a a supercomuter and alot of time. However you could run mini sims of 20 or so objects smoothly with some free soft of the web.
@Zetimenvec There are code samples for CUDA and DirectCompute that can do relativly large n-body simulations in real time on commodity hardware. If you render the simulation offline then you can up the particle count by significantly.
Very cool. I'd imagine the simulation must start with some asymmetry in the cloud right? Is there rotation to begin with or does the rotation come from turbulence or something?
I have to confess my ignorance when it comes to the mechanics of star formation.
Sadly, the creationists who keep saying that it's "theoretically impossible" for one of these things to happen may take years to catch up with new data like this.
It's a simulation. They model the physical conditions inside a cloud using known physics, and solve the equations as time goes on. So they can figure out where the gas is, how it moves, how gravity and pressure affect it, and so on.
In Carl Sagan's original Cosmos sseries there was a similar simulation; however because computers were not as powerful then there only about 100 stars visible in the simulation you could see each one individually and easily visualise that it was produced by "simply" calculating for each particle the motion, speed, gravity etc and letting the computer do the rest.
EPIC, proces that takes billion years to complete we see in just a few second...
SuperFlyingBrick 1 year ago
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This will only ever been seen in a cartoon. Stars do not form from "gas" "collapsing" under its own weight. Stars are lit electrically, they are the focus of a z pinch which is why they form axially along massive birkeland currents in space like beads on a string.
fertilizerspike 1 year ago
@fertilizerspike Exactly how big was the ass you pulled that from?
FALCO64125 1 year ago
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@FALCO64125
Welcome to the twenty-first century.
fertilizerspike 1 year ago
That remembers me water movements...
Phonologie 1 year ago
It takes millions of years for a star to form. Apparently we had cameras filming shit back then, i didn't know it but fuck yeah!
wowdanalise 2 years ago
BY THE WAY GUYS, that was just dry ice on water ^.^ Wbeaty did it too, it takes about half a day to gte the materials if ur unlucky
CWSSje 2 years ago
Is there software you can download that tries and do this? or is the computational overhead so massive that it's silly to think you could get your pc to pound out an animation like this in any reasonable amount of time?
Zetimenvec 2 years ago
That cloud is represented by ALLOT of particles and to crunch out an animation like this you'd need to recalculate each particles vector in relation to other particles (bacicaly pointing it towards the center of mass). And you'd have to do this for every frame, the more frames per second the more accurate results you'll get. For a simulation like this you need a a supercomuter and alot of time. However you could run mini sims of 20 or so objects smoothly with some free soft of the web.
Perspektyva 2 years ago
@Zetimenvec There are code samples for CUDA and DirectCompute that can do relativly large n-body simulations in real time on commodity hardware. If you render the simulation offline then you can up the particle count by significantly.
arthurandroid 1 year ago
Wow! Thats fucking amazing.
MrParrotman 2 years ago
I love protostellar dynamics!
elC0mmen 3 years ago
It's either going to be a HUGE supernova, or a relatively average blackhole.
LovelyYTRocks 3 years ago
relatively 'average' blackhole? Wouldn't the black hole be quite a huge one?
JeffreyOKay 2 years ago
amazing!
ThirstyonThursday 3 years ago
I wonder how long it took the super computer to crunch out this 25 second video. Days?
Malithion2001 3 years ago
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all that was poop from aliens!
kanyenke12 3 years ago
Very cool. I'd imagine the simulation must start with some asymmetry in the cloud right? Is there rotation to begin with or does the rotation come from turbulence or something?
I have to confess my ignorance when it comes to the mechanics of star formation.
majorvoltage 3 years ago
Sadly, the creationists who keep saying that it's "theoretically impossible" for one of these things to happen may take years to catch up with new data like this.
deconstrained 3 years ago 2
Awesome. It's very much like I pictured it.
Nature is all spirals and swirls.
Naturyl 3 years ago
cool!
(still, a little commentary would make it even better)
ndjarnag 3 years ago
Just wondering, is that how long would it take on a real, fully sized scale? Or would it take millenniums or something?
peacekid 3 years ago
Sweet!
Rystefn 3 years ago
One of the best videos on youtube i've seen in awhile.
SkepticalZombie 3 years ago
How is this done?
Do they look at it for a long time and speed up the changes or something?
PsychoBlack 3 years ago
It's a simulation. They model the physical conditions inside a cloud using known physics, and solve the equations as time goes on. So they can figure out where the gas is, how it moves, how gravity and pressure affect it, and so on.
TheBadAstronomer 3 years ago
Sounds Cool
PsychoBlack 3 years ago
In Carl Sagan's original Cosmos sseries there was a similar simulation; however because computers were not as powerful then there only about 100 stars visible in the simulation you could see each one individually and easily visualise that it was produced by "simply" calculating for each particle the motion, speed, gravity etc and letting the computer do the rest.
dontneed 3 years ago
sorry meant 1000 stars
dontneed 3 years ago
wow that is so sweeet. this is something ive always wished for a visualization
adr150 3 years ago
hi!
AbyssalTzk 3 years ago
Very nice. Interesting. The model also suggests how binary systems may form, if the parameters are slightly different.
dfarmer1584 3 years ago