Zim Hosein

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Nov 27, 1999
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Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:
 

JohnCU

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Dec 9, 2000
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Think of space and time as a blanket. What happens when you have people hold a blanket and place a heavy ball in the middle?

Replace the blanket with space and time and replace the ball with a planet.
 

The Godfather

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Jan 13, 2005
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Originally posted by: JohnCU
Think of space and time as a blanket. What happens when you have people hold a blanket and place a heavy ball in the middle?

Replace the blanket with space and time and replace the ball with a planet.


ooww ok i got it. nice imagery there.
 

Fraggable

Platinum Member
Jul 20, 2005
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Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.
 

The Godfather

Platinum Member
Jan 13, 2005
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Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.


cool, everyone says physics sucks but i think i'll enjoy it kinda
 

JohnCU

Banned
Dec 9, 2000
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Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.

Indeed it does, F = gM/r^2 I believe, where g is the gravitation constant, r is the distance from the source, m is the mass of the object. F is a vector although not denoted here.
 

Zim Hosein

Super Moderator | Elite Member
Super Moderator
Nov 27, 1999
65,394
407
126
Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.

Hey I'm learning Physics slowly myself Fraggable, but you are definitely not in my class you're way ahead of us! :eek:
 

necine

Diamond Member
Jan 25, 2005
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Originally posted by: Zim Hosein
Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.

Hey I'm learning Physics slowly myself Fraggable, but you are definitely not in my class you're way ahead of us! :eek:

Fraggable... Anything that has mass, has gravity.
 

Zim Hosein

Super Moderator | Elite Member
Super Moderator
Nov 27, 1999
65,394
407
126
Originally posted by: necine
Originally posted by: Zim Hosein
Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.

Hey I'm learning Physics slowly myself Fraggable, but you are definitely not in my class you're way ahead of us! :eek:

Fraggable... Anything that has mass, has gravity.

:confused:
 

necine

Diamond Member
Jan 25, 2005
3,631
0
0
Originally posted by: Zim Hosein
Originally posted by: necine
Originally posted by: Zim Hosein
Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.

Hey I'm learning Physics slowly myself Fraggable, but you are definitely not in my class you're way ahead of us! :eek:

Fraggable... Anything that has mass, has gravity.

:confused:

Text

G = Universal constant for gravity.
 

Mo0o

Lifer
Jul 31, 2001
24,227
3
76
Gravity is supposedly transmitted through a particle called the graviton in quantum particle theory, kind of like how electromagnetic forces are transmitted by photons. But no one has been able to find or detect a graviton because gravitational force is so weak compared to other forces. This is waht my physics professor said but I could have misheard
 

Swag1138

Diamond Member
Feb 7, 2000
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Also, Gravity is the weakest of the fundamental forces, which is why it only manifests on a huge scale. The forces are Weak Electromagnetic Force, Strong Electromagnetic Force, Gravity, and I think there's one more, but I can't remember it right now.

Also, as far as I understand it, no one knows for 100% sure what causes gravity, but the blanket model is as good a description as any :p
 

Mo0o

Lifer
Jul 31, 2001
24,227
3
76
Originally posted by: Fraggable
Originally posted by: Zim Hosein
Originally posted by: The Godfather
I just don't get how it forms.. What causes it to form?!

Are you the dumba*s in my Physics class? :confused:

No that's me.

Gravity is just centripetal force the way I understand it.
I also remember hearing once that every object has its own gravitational field, like for instance the rock of Gibraltar has enough mass to hold a paperclip to it?

I dunno, but I guess it's possible.

Centripetal force isn't right. If you're standing on a spinning object that didn't have enough gravity to hold you down, it spinning wouldnt do anything to keep you planted(assuming no friction). And if you're thinking of being inside a spinning object and standing ont he inside of the surface then that would be centripetal force which kind of acts like faux-gravity but it isn't gravity.
 

JohnCU

Banned
Dec 9, 2000
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Originally posted by: Swag1138
Also, Gravity is the weakest of the fundamental forces, which is why it only manifests on a huge scale. The forces are Weak Electromagnetic Force, Strong Electromagnetic Force, Gravity, and I think there's one more, but I can't remember it right now.

Also, as far as I understand it, no one knows for 100% sure what causes gravity, but the blanket model is as good a description as any :p

It's not that gravity is so weak, it's that subatomic particles have such small masses...