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Why aren't people at the South Pole upside down?


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Old 07-07-2005, 18:51
potatolegs
 
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I know this question has been asked loads and loads.

But how come??

Just imagine the Earth is a football for a second and an ant is crawling at the bottom end of the ball, (same place where the South Pole is), the ant would clearly be sticking to the bottom with its legs, and would appear upside down.
Well it wouldn't just appear IT WOULD be upside down.

How come say you went to the South Pole you wouldnt feel upside down?
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Old 07-07-2005, 18:55
Aspartame
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You just don't grasp the gravity of the situation do you?

Gravity pulls towards the centre of the football...err... planet, and wherever you stand on it, down is always towards the surface.

If you did "feel upside down", you'd fall off the world... which of course doesn't happen due to gravity.
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Old 07-07-2005, 18:57
100 monkeys
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Originally Posted by potatolegs
Why aren't people at the South Pole upside down?
They are !
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Old 07-07-2005, 18:57
imno12u
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The only reason people feel 'upside-down' normally, for example on a rollerocaster, is because of G-forces. As G-forces aren't acting on us as we move normally on the planet you don't feel upside-down although strictly speaking you are. The earth's gravity pulls us in at equal force all over the planet so you feel no different anywhere on earth.
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Old 07-07-2005, 18:58
potatolegs
 
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Originally Posted by Guilty as Sin
They are !
So they really are upside down.

And, the blood doesn't rush to their head because gravity pulls the blood back down their feet?
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Old 07-07-2005, 19:00
potatolegs
 
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Originally Posted by Aspartame
You just don't grasp the gravity of the situation do you?

Gravity pulls towards the centre of the football...err... planet, and wherever you stand on it, down is always towards the surface.

If you did "feel upside down", you'd fall off the world... which of course doesn't happen due to gravity.
Oh I see!!!

I sort of thought it was to do with gravity but wasnt completely certain.

Also if the world just stopped spinning suddenly, would we all fall off??
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Old 07-07-2005, 19:00
russellelly
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There's no up and down in space. Up and down are only useful relative to the surface of the earth, which is always 'down' regardless of where on the planet.
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Old 07-07-2005, 19:01
100 monkeys
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Originally Posted by potatolegs
So they really are upside down.

And, the blood doesn't rush to their head because gravity pulls the blood back down their feet?
Exactly! This would obviously mean the southern hemisphere brain is located in the feet. They also have tiny "suckers" on their feet to keep them from floating into space .
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Old 07-07-2005, 19:01
russellelly
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Originally Posted by potatolegs
Also if the world just stopped spinning suddenly, would we all fall off??
Not necescarily. That'd depend on what else was the cause of the earth stopping.
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Old 07-07-2005, 19:03
potatolegs
 
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Originally Posted by Guilty as Sin
Exactly! This would obviously mean the southern hemisphere brain is located in the feet. They also have tiny "suckers" on their feet to keep them from floating into space .
LOL -- I can't grasp it though thinking about it..

But there heads are pointing downwards though!!!
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Old 07-07-2005, 19:04
potatolegs
 
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Originally Posted by russellelly
Not necescarily. That'd depend on what else was the cause of the earth stopping.
Just say it just stopped like some brakes went on.
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Old 07-07-2005, 19:05
JJ2005
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Everyone is upside down relative to others at the antipodes. i.e. that point on the globe exactly on the opposite side from you.

Australia and New Zealand are approximately the antipodes of the UK.

But we all feel gravity pulling us towards the centre of the earth, so nobody FEELS upside down.

Unless you are pissed of course, in which case who cares.
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Old 07-07-2005, 19:06
Ratinho
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And y'know, still a more intelligant start to a thread than most on this page.
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Old 07-07-2005, 19:07
munta
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Originally Posted by potatolegs
I know this question has been asked loads and loads.

But how come??

Just imagine the Earth is a football for a second and an ant is crawling at the bottom end of the ball, (same place where the South Pole is), the ant would clearly be sticking to the bottom with its legs, and would appear upside down.
Well it wouldn't just appear IT WOULD be upside down.

How come say you went to the South Pole you wouldnt feel upside down?
You can't beat a potatolegs question to bring some light hearted relief to these forums. My Doctor thinks... Its just what we all needed.
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Old 07-07-2005, 19:07
JJ2005
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Originally Posted by potatolegs
LOL -- I can't grasp it though thinking about it..

But there heads are pointing downwards though!!!
Look at a globe and see where the UK is.

To an outsider looking at the globe with the North Pole at the top, we would look as if we were standing at an angle, and peolpe at the equatro would look like the were standing sideways.
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Old 07-07-2005, 19:09
TheCableGuy
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Originally Posted by russellelly
There's no up and down in space...
Therfore no one is upside down. I think i am right in saying its because of the position of the moon and the face that people in the northern hemisphere started mapping, and so we are 'upright'.
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Old 07-07-2005, 19:10
potatolegs
 
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I know you guys keep saying we dont feel upside down because of gravity, but people in the south poles heads are like dangling downwards, if that makes sense, and I know gravity caused by the spinning holds you in, but that doesnt explain for me why they don't feel upside down when they truly are more upside down than the other of the Earths inhabitants.
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Old 07-07-2005, 19:11
Nylex
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Originally Posted by potatolegs
and I know gravity caused by the spinning holds you in
What? Gravity is caused by mass, not rotation.
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Old 07-07-2005, 19:12
potatolegs
 
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Originally Posted by Nylex
What? Gravity is caused by mass, not rotation.
LOL - I was really listening in science wasn't I?

Sorry I was getting centrugation mixed up with gravity.

Ooh now I heave learnt why Jupiter has real strong gravity, is it because it has a larger mass?
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Old 07-07-2005, 19:16
Milky Joe
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The only reason you could think that people at the south pole are upside down is just due to scientific convention. We could quite easily draw the solar system the other way up, or sideways, or any way really. Because there is no low/high point of the universe.
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Old 07-07-2005, 19:18
potatolegs
 
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So if there is no up or down in the universe, what is there, just space everywhere for infinity so you cannot determine what is the up part or the down part???
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Old 07-07-2005, 19:18
bob.bobsta
 
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When you consider the vast expanse that is the universe, how can you be so sure that we are the right way up?
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Old 07-07-2005, 19:20
potatolegs
 
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Originally Posted by bob.bobsta
When you consider the vast expanse that is the universe, how can you be so sure that we are the right way up?
It makes our whole solar system look like a little speck!!
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Old 07-07-2005, 19:20
Aspartame
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Originally Posted by potatolegs
So if there is no up or down in the universe, what is there, just space everywhere for infinity so you cannot determine what is the up part or the down part???
up and down have no overall meaning in the universe. it all depends on the local gravitational field.
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Old 07-07-2005, 19:23
dmuk
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Depends what perspective you are viewing from. But from the North, they are upside down, just not when you get there.

Gravity has very little to do with it, just perspective.
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