xes
F.O.A.D
not a chance.
Fruitloop,didn't you get the memo,wikipedia is not a reliable source of information.
What makes us solid?
- Thread starter xes
- Start date
not a chance.
Fruitloop,didn't you get the memo,wikipedia is not a reliable source of information.
xes
F.O.A.D
I think it is great for geek stuff actually. Politics etc is a lot more contentious.
yes,but where does one draw the line in what's good info from there and what's bad? AND WHAT HOLDS IT ALL TOGETHER!!
camouflage
gaslit at scale.
xes
F.O.A.D
Beats escaping through your mouth
I dunno man,I like a good chunder very now and then,lets you know you're alive. It's almost like an electromagnetical repulsion of stuff the body knows it doesn't want.
(I tried to hard to stay on topic,I really did)
xes
F.O.A.D
yeah but it's probably the closest they've come. And as none of it's proved yet,we can all but pontificate. But I like to think that my pants know that they're doing what they were supposed to be doing,ect.
Jonti
what the dormouse said
It springs from the ability to act in the world, the ability to chose (to however limited extent) one out of the many possible futures. That's the only thing you need it for.
xes
F.O.A.D
that's arse about face,surely?
You can act in the world,because you have a conscience,not the other way round.
FridgeMagnet
Administrator
"Solid" is the word we use for that sort of thing. At base, "solid" refers to a bunch of simple physical behaviours in macro scale - you can't put your fist through it without breaking it, it hurts if you bang your head on it. There are some metaphorical meanings as well but let's not go there. Then there is the physics definition of "a solid", which is meant to pretty much mostly correspond to the common definition.
That's just what it means - the fact that actually it's all down to repelling forces and most of the universe is vacuum, or in fact that everything is just a bunch of probability waveforms anyway, or whatever, is just a detail. It doesn't change what "solid" means. If you bang your head on the desk does it hurt? So it's solid. You might as well say "oh how is vibration in air molecules a sound?"
That's just what it means - the fact that actually it's all down to repelling forces and most of the universe is vacuum, or in fact that everything is just a bunch of probability waveforms anyway, or whatever, is just a detail. It doesn't change what "solid" means. If you bang your head on the desk does it hurt? So it's solid. You might as well say "oh how is vibration in air molecules a sound?"
DotCommunist
So many particulars. So many questions.
xes is hung up on the 99% space factoid. Xes, it made an interesting premise for feelgood kids movie Honey I Shrunk The Kids. That is all.
xes
F.O.A.D
I am a little hung up on it,cos it confuses me. My brain hits a brick wall with it (which is solid
) It's a pretty good factoid to be hung up on though,as it's true. It poses a billion and 24 questions,not many of which have been answered.Don't know if people have answred this already- but AFAIR the answer is the Pauli Exclusion Principle
No two fermions can have the same quantum identity- which means that two things cannot exist in the same space. As you press two atoms up against each other, their electrons- which themselves are simply waves smeared out over space- will eventually have some areas of space in which they both exist. They cannot occupy this space together, and this provides the pressure to keep the atoms apart (the solidity).
In neutron stars, this pressure- vast as it is- is nearly overcome by gravitational attraction, which eventually forces the electrons to collapse onto protons (thereby making neutrons) rather than violate the PEP. The resulting shock wave as the star suddenly shrinks and then comes to a halt creates a shockwave that blows the outer layers of the star away- a supernovae explosion.
It has beena while since I studied this- so the above may in fact be poorly remembered toss.
No two fermions can have the same quantum identity- which means that two things cannot exist in the same space. As you press two atoms up against each other, their electrons- which themselves are simply waves smeared out over space- will eventually have some areas of space in which they both exist. They cannot occupy this space together, and this provides the pressure to keep the atoms apart (the solidity).
In neutron stars, this pressure- vast as it is- is nearly overcome by gravitational attraction, which eventually forces the electrons to collapse onto protons (thereby making neutrons) rather than violate the PEP. The resulting shock wave as the star suddenly shrinks and then comes to a halt creates a shockwave that blows the outer layers of the star away- a supernovae explosion.
It has beena while since I studied this- so the above may in fact be poorly remembered toss.
Jonti
what the dormouse said
Solid isn't a scientific term really. It's taken to imply rigidity, and occupying space to the exclusion of other solid bodies. It's also got connotations of mass, which is yet another aspect.
So I'd guess it takes both electrostatic bonding, and the exclusion principle.
So I'd guess it takes both electrostatic bonding, and the exclusion principle.
No, it's simply due to electrostatic repulsion between the electrons in atoms. If you applied enough pressure to two atoms next to each other they would be forced to bond (even noble gases with full electron shells) showing that there are still quantum states the electrons can go into. The Pauli exclusion principle only becomes important at much higher pressures.
Also solidity has nothing to do with gravity or the Higgs boson as people said earlier in the thread.
Johnny Canuck3
Well-Known Member
Rainingstairs
Well-Known Member
eta: THIS IS THE ANSWER lol
There is a natural push and pull of forces, all of which are leading towards a more disordered state. (Newtons 2nd Law of Thermodynamics, I think) the desire for things to move towards a more disordered state, as the universe tends to do, actually fuels the tendency for things to become ordered, because this ordering is not as great as the DISordering...and these two acts are inherently coupled.
Think of falling rocks off a cliff. Either these falling rocks can hit the ground, and their energy will then dissipate as say, 10 joules of heat. Or we can harness that heat by pulling a levy that the rocks will smack on their way down. This levy will now spin and spin and create energy. What if we couple this energy to some kind of hydraulic machine that pumps water upward? Water that was once stagnant, now flows. The rock will now hit the earth at 6 joules. The rest of this energy is being utilized to power an act that would not occur naturally i.e. The falling of rocks is natural...the flowing of water uphill is not. Things that are not naturally meant to be solid, like us, become so because the great universal tendency toward disarray actually fuels the ordering of our many components.
I think with shrunken font, that will totally fit on a postcard
Rainingstairs
Well-Known Member
Cerebral cortex
Rainingstairs
Well-Known Member
