I'm sorry. I thought it was rather intuitive which half of an egg is the top and which is the bottom. Whenever an egg is drawn or otherwise depicted, it is almost always oriented the same way, and so I'm having trouble believing that there is any real confusion here. Besides, my question...
Homework Statement
A) Suppose that we have 3 quantities, x, y, and z. An increase in x by a factor of F is followed by a subsequent increase of y by a factor of 2F. Furthermore, the very same increase in x by a factor of F results in a subsequent decrease of z by a factor of F/2. Similarly...
This is not homework. I'm reading a physics for laypeople book and I'm trying to wrap my head around something that other people obviously have little or no trouble understanding.
I understand what it means when someone says that a body's acceleration is directly proportional to the magnitude...
Why is a magnetic field "a field-of-force in space" while a gravitiational field is "not a field in space, but a curvature of space itself"? Why can't we describe and explain EM repulsion and attraction the way we explain gravitational attraction? Why don't we say that the presence of a charge...
I understand that, given Earth's distance from the Sun and it's atmospheric pressure, it is possible for liquid water to flow and to rain down on Earth's surface. I also understand that, given Titan's distance from the Sun and it's atmospheric pressure, it is possible for liquid methane to flow...
Two questions
1) Say you had a small boat with no motor or paddles; no propulsive device save the one I'm about to describe: mounted on the boat's outer hull and submerged in the water, there is a water-heating-mechanism at the bow and a water-cooling-mechanism at the stern. Since heat makes...
We see that the galaxies within clusters move faster than their combined masses dictate. We also see gravitational lensing going on in "empty" intergalactic space (with the exception of a few hydrogen atoms here and there). We do not infer that the momentum of energy flowing through those...
Can energy flow through "empty" spacetime, or is some sort of material vehicle or conduit necessary? I'm imagining regions of "empty" space which are gravity-wells nonetheless because the momentum of the energy flowing through them is so high. But if energy can only flow through regions of...
With this in mind (plus the fact that between two bodies of equal mass but different density, the denser of the two will gravitate more strongly) why do we still say that gravity is determined by only two factors, the masses of the bodies and the distance separating them?
Totally understood. I wish I had asked "What were K and K's motives for insisting on this 1-to-1 force-to-dimension correspondence?" or "What are the motives of K-K theorists for insisitng...?"
Gotcha. I've heard that the strength of gravity is dwarfed by the strength of the nuclear...
Thank you all for your responses. I'm sure that the links you've supplied me will themselves supply me with a wealth of information.
Forgive me, but, is there a simple answer to the following question: Why must there be a one-to-one correspondence between forces and dimensions?
That is to...
Quick Question(s):
Who was it that tried to account for the EM force in terms of spatial curvature; i.e., who tried to expand GR in order to explain EM attraction and repulsion?
Also, on what grounds was his account refuted?