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Here I am with another question .. thought up and pondered over during another night of insomnia!
The problem is .. This is a hard one to figure out how to ask!
Well, here goes anyway!
In space, there is no up or down .. correct?
The 'down' part is totally dependent on gravity .. right?
Now .. let's say that I am God.
(Don't get upset with me you Christians on the forum, it's the only way I can ask this.)
So, I am God and space is totally void of anything.
(A blank space .. so to speak)
.
I, as God reach out my hand and hang the planet earth on 'nothingness'<-- That sentence is in the bible .. Well not the planet word.).
Now since there is no up or down and no other objects that create the force of gravity (planets, moons etc), does the earth just float on this emptiness?
Or does the planet fall, rise, bob like a soap bubble .. what?
Is everything, from the smallest moon to the largest galaxy just 'hanging' in space?
Forget the rotation and orbiting movements, I am only interested in the up or down directions.
I know .. crazy question huh?
Hey, it makes my insomnia very interesting though!
This was not an unreasonable question, aside from the capital letter used in the assignation of a hypothetical first cause.
Particles have a "handedness", and the traditional concepts of Right and Left are meaningless until Up and Down are defined as referents. If you wish to address the OP's question, start there.
If there were "nothingness" how could the planet rise, fall bob or weave?
Those characteristics would indicate there were other forces acting on the planet... (unless god farted or sneezed or something)
HEY pghquest .. whatcha doing over here?
That's just it .. without reference .. HOW would you know if you were falling?
Even with a universe filled with objects, if all the objects were falling at the same rate (which they would be due to lack of any resistance) you would have no reference to judge movement.
It's a tough concept when you think of space and objects within that space .. not moving vertically!?
That's just it .. without reference .. HOW would you know if you were falling?
Even with a universe filled with objects, if all the objects were falling at the same rate (which they would be due to lack of any resistance) you would have no reference to judge movement.
It's a tough concept when you think of space and objects within that space .. not moving vertically!?
This is the beginning of a the same line of thought that led to Special Relativity and then General Relativity.
Without reference there is no way of knowing if you're moving. In more precise terms, the "principle of relativity" states that all laws of physics are independent frame of reference. If they weren't then an experiment based on those laws would be able to tell you your absolute frame of reference. One consequence of the principle of relativity is that the speed of light the same as measured in all reference frames, not matter their relative velocities.
All experiments currently accepted show that the principle of relativity is true and that there is no absolute reference inherent in space; only the matter and energy in the universe (such as Earth) serve to define any preferred frame.
This is the beginning of a the same line of thought that led to Special Relativity and then General Relativity.
Without reference there is no way of knowing if you're moving. In more precise terms, the "principle of relativity" states that all laws of physics are independent frame of reference. If they weren't then an experiment based on those laws would be able to tell you your absolute frame of reference. One consequence of the principle of relativity is that the speed of light the same as measured in all reference frames, not matter their relative velocities.
All experiments currently accepted show that the principle of relativity is true and that there is no absolute reference inherent in space; only the matter and energy in the universe (such as Earth) serve to define any preferred frame.
Is that what you're asking?
Yup .. That was it exactly!
This is one of those brain drains that keep you awake at night.
(Or maybe just me)
For instance: Being that the speed of light is constant .. what happens when you are in an automobile, traveling at light speed and .. you turn on your headlights?
For instance: Being that the speed of light is constant .. what happens when you are in an automobile, traveling at light speed and .. you turn on your headlights?
For instance: Being that the speed of light is constant .. what happens when you are in an automobile, traveling at light speed and .. you turn on your headlights?
What happens when you drive a car into a black hole with the just the driving lights on?
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Good one, Einstein.
