Gravity is caused by rotation of large objects. Mass alone does cause gravity, but an object of large mass and surface area will cause gravity based on the speed of its rotation generating force. This gravity will affect other bodies in space, causing moons and asteroids to rotate and orbit, which create their own less powerful gravity due to the smaller size of these objects. Multiple small objects could form a loose surface area with some gravity generated from their speed and rotation.
The Earth's gravity is not caused by a "spinning molten core," but by the rotation of the entire mass of earth causing gravitational force based on the size of its surface area.
Absense of rotation equals zero gravity. If the Earth stopped rotating, we would all start floating towards space.
Name:
Anonymous2006-07-27 20:46
Well, what about light?
In reality, light has mass and can be affected by gravity. BUT, light does not rotate!
Why?
Because light does not rotate, it does no exert gravity. But since it is matter, it is still affected by the gravity of other things. Hence why light can bend into a black hole, but light waves do not cluster together in their travel between galaxies. (as they should if they exerted gravitational force)
Name:
Anonymous2006-07-27 23:23
>>40
Wow,lurk more or something, every single person in this thread is trolling, this is the annual SCIIIEEEEEEENCNCCCCCCCCEEE troll thread.
Name:
Anonymous2006-07-28 0:19
If you spn around fast enough in the opposite direction you can counteract the force of gravity. PROOF:helicopters
>>41
Light does not have mass. It does not exert gravity because it does not have mass. It is affected by gravity because of the curvature of space. Rotation has nothing whatsoever to do with gravitational attraction of any kind. I hate trolls. Fuck this stupid discussion.
>>45 It does not exert gravity because it does not have mass.
Light has energy and momentum. Therefore it still deforms spacetime (aka 'exerts gravity').
the more mass something has, the more momentum it has when moving at the same speed.
Light = zero mass? Then light = zero momentum
Go back to middle school
Light = zero mass? Then light = zero momentum
Not with GR.
Name:
Anonymous2006-07-29 19:14
>>50
The relativistic total energy is E^2 = p^2 c^2 + m^2 c^4. Light has energy but no mass, hence it has momentum.
Go back to university, you fucking tard.
Name:
Anonymous2006-07-29 22:30
>>52
HEY MAN YOU CAN'T JUST GO CHANGING FORMULAS ON US OKAY.
Name:
Anonymous2006-07-30 16:35
a belif not a truth
Name:
Anonymous2006-07-30 16:43
E^2 = p^2 c^2 + m^2-c^4.
Fixed IDIOT
Name:
Anonymous2006-07-30 17:03
R_ab - (1/2)R g_ab = (8 pi G)/c^4 T_ab ?!?!?!
Name:
Anonymous2006-07-30 19:33
>>55
What the fuck? Did you just add a minus sign? That makes no fucking sense, your units don't even add up.
Name:
Anonymous2006-07-30 19:37
>>54
You're an idiot. It's not a belief, it's a theory for which there is an overwhelming amount of scientific evidence.
Name:
weeaboo2006-07-30 21:17
Let's go back and address the spinning retard theory. I think this theory shows promise. For example, if you start spinning around, you get dizzy and fall over. Also incorporating Newton's 4th law (two bodies in motion create white lotion), you have now plenty of inspiration for weeaboo art. Thus many ideas have just gravitated together. This is the new scientific paradigm of reality. If you continue reading this, you just lost one braincell that could have been committed elsewhere. You are a retard.