# Human Gravity!

Caesar_Rahil
Suppose, I become twice as big as the earth. Then Can I have my own Gravity!

gurkhawarhorse
yes. u do even now.

Last edited:
rocketboy
That's pretty damn big. You're going to have to eat a lot of ice cream. (That's what Vin Diesel *forgive the spelling of his name* did to gain poundage fora movie).

zoobyshoe
As Gurkha pointed out, you already have your own gravity. You exert just as much pull on the Earth as it exerts on you.

If you went into space, you might carefully put some little speck of something into orbit around you and could thereby have your own moon.

Gravity is only a theory.

Using the logic of Intelligent Design, how do you know it even exists?

Homework Helper
Caesar_Rahil said:
Suppose, I become twice as big as the earth. Then Can I have my own Gravity!
Not by yourself. It takes two to gravitate towards each other.

$$F=\frac{Gm_1m_2}{r^2}$$
where F is the force of gravity, G is the universal gravitational constant, one of the m's is your mass, the other m is some other mass, and the r is the distance between the two of you.

Notice that being smaller in mass than the Earth might make your own force of gravity smaller, but it's always greater than zero. Notice, also, that being further away might make the force of gravity smaller, but the force of gravity will always be greater than zero.

Every star you see in the sky is pulling on you at least a little bit. You're affected by everything in the universe - even the things so far away you can't see them.

Likewise, you are pulling on every star and every planet that exists in the universe. Your presence in the universe affects every other single thing in the universe.

Or, as Emerson, Lake, and Palmer said, "It is perfectly clear.... you were meant to be here ......... from the beginning." (I like that song )

Gold Member
Skyhunter said:
Gravity is only a theory.

Using the logic of Intelligent Design, how do you know it even exists?
Tee hee. (At least, I presume you jest.)

Edit: just stumbled across http://www.theonion.com/news/index.php?issue=4133&n=2 [Broken], probably the seed for Skyhunter's comment.

Last edited by a moderator:
Gold Member
BobG said:
Not by yourself. It takes two to gravitate towards each other.
Whether or not there is any other object, he still has a gravitational force. If he has mass, he has gravity.

Gold Member
zoobyshoe said:
If you went into space, you might carefully put some little speck of something into orbit around you and could thereby have your own moon.

Challenge: What size object, at what distance, orbiting at what speed could be a moon for a 50kg person (assuming a spherical person)?

Staff Emeritus
Gold Member
Would Caesar have gravity if he was the only mass in the universe?

assume a point Caesar here.

εllipse
BobG said:
You're affected by everything in the universe - even the things so far away you can't see them.
Gravity is not non-local; it moves at the speed of light, so if something's light hasn't reached you yet, neither have the effects of its gravity.

DaveC426913 said:
Tee hee. (At least, I presume you jest.)

Edit: just stumbled across http://www.theonion.com/news/index.php?issue=4133&n=2 [Broken], probably the seed for Skyhunter's comment.
:rofl: :rofl: :rofl: :rofl: No it wasn't but it is hilarious.

Last edited by a moderator:
εllipse
DaveC426913 said:
Tee hee. (At least, I presume you jest.)

Edit: just stumbled across http://www.theonion.com/news/index.php?issue=4133&n=2 [Broken], probably the seed for Skyhunter's comment.
:rofl: That's priceless.

Last edited by a moderator:
kant
Caesar_Rahil said:
Suppose, I become twice as big as the earth. Then Can I have my own Gravity!

Only if you are good...

Caesar_Rahil
That means all I have to do is get that big