How big can a rock be before it is to large and collapses in on itself?
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Who gives a fuck
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Earth is a rock.Comment
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Ok so it would need to be larger than earth, but how large?Originally posted by JoesTrafficComment
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you talking about the sun........ICQ:268731675Comment
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larger than jupiterOriginally posted by After Shock MediaICQ:268731675Comment
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if the sun collapses we will all be sucked in to it.ICQ:268731675Comment
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The sun is not a rock.Originally posted by BirdComment
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Any piece of matter over 12.6 million miles in circumference will begin to collapse onto itself and has the potential to become a "black hole". We're talking fucking HUUUGGEEEEEE.....
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PS: i just made that shit up.Comment
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I guess BIG
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Jupiter is also not a rock.Originally posted by BirdComment
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Depends on the mass of the rock. You could have a 1 inch radius peice of matter that collapses on itself, you could have an infinitely large peice of matter that did not...oOooooooOOoComment
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Just caught your PS. Cause I was about to say Earth has a circumference of 24902 miles.Originally posted by jawandaAny piece of matter over 12.6 million miles in circumference will begin to collapse onto itself and has the potential to become a "black hole". We're talking fucking HUUUGGEEEEEE.....
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PS: i just made that shit up.Comment
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Wouldn't that form a blackhole or something like that ?Originally posted by rayadp05Comment
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I do not think so.Originally posted by Doctor Dre
There just has to be a point that a rock would reach in size that eventually it was just to big and the internal pressures could no longer hold its size and would thus just liquefy the entire thing or turn gaseous.Comment
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Actually we wouldnt. For a star to be transformed into a blackhole it first has to go SuperNova. The star itself has to be MASSIVE, like 8 times the mass of our sun.Originally posted by Bird
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Originally posted by Bird
jupiter isn't rock of any type. it is a gas giant. the only planets in our solar system that are comprised mainly of rock are the inner planets.
mercury
venus
earth
mars
possibly pluto, but they are not sure yet. pluto is most likely just a large chunk of ice and debris from the kyper belt.Cry havoc and let slip the dogs of war.Comment
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Come on I was pondering this for a good hour last night while I was waiting to fall asleep.Comment
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Originally posted by After Shock Media
Ok, I was goofing in my last post, but on a more serious note ...
What KIND of rock? Granite certainly has a different density than, say, limestone and therefore the size necessary for a "collapse" would be different.
-PComment
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Well when I was going over it, I was just thinking a rock style planet. Naturally Earth itself is an assortment of all the rocks, and I would presume a larger rock planet would also be the same (crossing out marble and other compressed bone rocks of course).Originally posted by jawandaComment
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Didn't you learn physics in the shcool??? The answer to your question depends on rock's material (I mean the parameters liks solidity, soundness and friability) And also it depend's on its shape and position relatively to the bearing(s). In complex cases you may even draw a load diagramOriginally posted by After Shock Media
P.S. The US educating system sux again...Obey the CowgodComment
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No I did not learn physics in shcool, I was taught them in school.Originally posted by cyberxxxDidn't you learn physics in the shcool??? The answer to your question depends on rock's material (I mean the parameters liks solidity, soundness and friability) And also it depend's on its shape and position relatively to the bearing(s). In complex cases you may even draw a load diagram
P.S. The US educating system sux again...
This is a hypothetical question of course. One that would depend on geology as well as physics. I have no clue as to what pressures cause one rock to be pressed into another and so on. So alas I was thinking along the lines of a rock type planet. There has to be a maximum size one could be before it could not support its own weight.Comment
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Density. Period. Theoretically, any mass -- if compressed to small enough space -- can become a black hole. On the flipside, if you release all the energy in a grain of salt, it would boil an olympic-size swimming pool for several hours --
2hptada!Comment
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Originally posted by After Shock Media
Ok I had a thought ... I think you're looking at this wrong.
As the planet gets bigger ... ie more "rock matter" is added to it, its gravity will increase. As the gravity increases it will continue to become more dense (and possibly smaller in "size"?), although its' increased gravity will also cause more matter to be pulled to it, and the cycle continues. Would the planet actually continue to get "bigger" in "size" though? Or would it's density simply increase at an alarming rate until it becomes a black hole? Or would it reach a "size" where it would become unstable for some reason... perhaps if it wasn't dense enough?
Lol
<-Not quitting my day job.
-PComment
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Also depends on the rock's material. If you know it, you know:
1) it's strength (an ability to resist pressure)
2) it's density
the planet's gravitation depends on its size (diameter) and the rock's material (if that hypothetical planet is homogeneous). so you may see the point when the force of planet's gravitaion F (m*g) is greater than rock's strength.
where: m is a mass of the planet (depends on rock's density and planet's size (volume)) and g is a gravitational acceleration constant.Obey the CowgodComment
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That's absolutely correct! But After Shock Media asked about the point when the rock's structure will be destroyed by it's own mass (i.e. BEFORE if will be compressed into the more dense rock)Originally posted by 2HousePlague
Obey the CowgodComment
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quark stars are really smallICQ:268731675Comment
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Stars no matter the type do not fall under the rocky planet categories.Originally posted by Bird
Translation, stars never are rocks.Comment
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Wouldn't the pressure eventually just cause so much heat it would liquify the rock itself by turning it molten or gaseous though?Originally posted by cyberxxxThat's absolutely correct! But After Shock Media asked about the point when the rock's structure will be destroyed by it's own mass (i.e. BEFORE if will be compressed into the more dense rock)Comment
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Preasure (I mean just the force without compression movement of rock) CAN NOT cause any heat at all. I.e. first of all your rock have to lose its structure (must be crushed by itself) to be moved. Only after that the pressure could cause the heat. I.e. the compression process should begin.Originally posted by After Shock Media
P.S. I'm not so sure for the tech definitions above because English is not my motherlanguage as you may note already
Obey the CowgodComment
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You sure?Originally posted by cyberxxxComment
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P.S. Only compression (volume reduction) causes a heat, as well as the expansion (volume enlargement) causes a cold. But not the preasure (force) itself!
This is something that you should learn when you were a schoolboy.Obey the CowgodComment
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Yep, 100% sure. I've done a Russian high school about 15 years ago, but I still remember the basics of physicsOriginally posted by After Shock Media
Obey the CowgodComment
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I did not get a great deal of sleep so maybe I am not explaining it properly.Originally posted by cyberxxx
Basicly wish to know what is the maximum size a rock category planet could be.
There has to be some limit or basic answer without knowing every variable.Comment
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There is no single answer to your question. Because such a limit depends on 2 variables:Originally posted by After Shock Media
1) rock's density (aka breaking point)
2) rock's strength/durability
I.e. the the limin is a function of these 2 variables:
limit = f(p, t)
where:
- t is breaking point;
- p is density
Do you understand this?Obey the CowgodComment
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No there is not an answer (known) to this.Originally posted by After Shock Media
1.) To make the correct determination, you HAVE to know all of the variables.
2.) Until proven otherwise, there is NOT a maximum size..
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I have a sigComment
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Questions like this are the reasons why I hate Physics..
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Originally posted by 2HousePlagueDensity. Period. Theoretically, any mass -- if compressed to small enough space -- can become a black hole. On the flipside, if you release all the energy in a grain of salt, it would boil an olympic-size swimming pool for several hours --
2hp
I'm pretty sure this is the right answer.
Any kind of mass can implode if the right conditions occur.
I'm also pretty sure that stars are the only things we know of that implode under thir own weight like this.7Comment
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