- #1
Matt-er
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So, usually I like to give a long description of how/why I am asking such a question, but I think this time, I'll be quick and to the point. Truth is when I first came to this site, I think I started asking questions that were well beyond my current knowledge, so I would like to take the time now to go back to some of the more basic questions. So without further ado, here they are:
1. The Normal Force- the force that keeps things from falling into other things, the force that opposes gravity, bla bla bla; we've all heard those "high-school wives' tales." Question is: What truly explains the normal force? I mean from a quantum mechanics point of view, what is the main dominant or rather more important phenomena that makes the normal force possible? On the stockexchange-physics site (which I know for a fact, is extremely untrustworthy, which is why I'm here), I've been told that the normal force is mostly due to the pauli principle and also due to the electrostatic repulsion forces, but their explanations seemed somewhat-- lacking, not to mention, in some places, downright, incorrect.
2. The normal force is usually "applied" to things on top of surfaces/ solid objects, but could the phenomena responsible for the normal force be used, in theory, to make non-solid objects repel other objects? Ie: Could we use the phenomena that manifests the normal force in such a way to have, say, water repel a person that is on top of it? (walking on water, anyone?
)
3. Kind of a last, fun theoretical question, but imagine this scenario:
You're getting close to a black hole, and you think "@##$ I've really done it this time. How am I going to get out of this one?". You realize that not even light can escape it. But then, you remember what your high-school professor told you, that the normal force opposes gravity (kind of bull---, but just go with it for now). And let's just say that you have access to some kind of a black-box or a star trek replicator that can make a huge amount of tables. Granted that the normal force is only nearly equal to the opposing force of gravity, but would it be theoretically possible to just stack those tables on top of each other, climbing on top of the newly stacked table, and keep stacking them until you get so far away from the black hole, that you get out of its gravitation pull and climb your way to freedom? (yes, I know that's a lot of tables, but who knows, maybe it's a small black hole
)
As always, awaiting your replies, but please no flaming/spamming/ spitting on the sidewalk, and of course, Thanks for reading,
- Matt-er
1. The Normal Force- the force that keeps things from falling into other things, the force that opposes gravity, bla bla bla; we've all heard those "high-school wives' tales." Question is: What truly explains the normal force? I mean from a quantum mechanics point of view, what is the main dominant or rather more important phenomena that makes the normal force possible? On the stockexchange-physics site (which I know for a fact, is extremely untrustworthy, which is why I'm here), I've been told that the normal force is mostly due to the pauli principle and also due to the electrostatic repulsion forces, but their explanations seemed somewhat-- lacking, not to mention, in some places, downright, incorrect.
2. The normal force is usually "applied" to things on top of surfaces/ solid objects, but could the phenomena responsible for the normal force be used, in theory, to make non-solid objects repel other objects? Ie: Could we use the phenomena that manifests the normal force in such a way to have, say, water repel a person that is on top of it? (walking on water, anyone?
3. Kind of a last, fun theoretical question, but imagine this scenario:
You're getting close to a black hole, and you think "@##$ I've really done it this time. How am I going to get out of this one?". You realize that not even light can escape it. But then, you remember what your high-school professor told you, that the normal force opposes gravity (kind of bull---, but just go with it for now). And let's just say that you have access to some kind of a black-box or a star trek replicator that can make a huge amount of tables. Granted that the normal force is only nearly equal to the opposing force of gravity, but would it be theoretically possible to just stack those tables on top of each other, climbing on top of the newly stacked table, and keep stacking them until you get so far away from the black hole, that you get out of its gravitation pull and climb your way to freedom? (yes, I know that's a lot of tables, but who knows, maybe it's a small black hole
As always, awaiting your replies, but please no flaming/spamming/ spitting on the sidewalk, and of course, Thanks for reading,
- Matt-er