granpa

Manifold: if our 3d world is a manifold in a 4d world then a huge worlds could form on the surface of this manifold. smaller manifolds could form from gamma ray bursts at the centers of galaxies. fields as stess in manifold does not work: the obvious idea of simply relating stress/strain in the manifold with long range forces does not lead to an inverse square law. What would you have to do to get it to work? lets take the electric field as an example. the manifold would have to be made of particles each of which is an electric dipole. you can think of each dipole as a positive charge and a negative charge connected by a spring. now think of the manifold as being 2 manifolds. one of positive charges and the other of negative changes. each manifold tries to maintain constant density. it resists compression and rarefication (it resists change in divergence). a positive ion at any point in the manifold will push away the positive charges surrounding it and will pull the negative charges toward itself. the field of the ion at any point is the degree to which the dipoles at that point are pulled apart. in other words its the degree to which the spring is stretched or compressed. this does usually give an inverse square law. There are however special geometric arrangements that require that the manifold resist change in curl as well as change in divergence. In other words, it is far from a simple elastic. It is much simpler to just treat the field itself as fundamental ether: http://www.tu-harburg.de/rzt/rzt/it/Ether.html http://www.tu-harburg.de/rzt/rzt/it/Ether.html space ceases to be a 'thing' and becomes an idea. a description of the way that fields (or rather their values at various points) and particles interact. non-inverse square law force: for a force, like gravity or the electric force, that follows an inverse square law the force at the surface of a particle is inversely proportional to the square of its radius. (assuming that its mass or charge remains unchanged) a force that follows an inverse cube or higher law would be negligible everywhere except very near the surface. surprisingly, the strength of such a force measured at the surface of a particle would also be inversely proportional to the square of the radius of that particle. (assuming, of course, that the mass or strong charge remains the same) the potential in the center of such a body would be inversely proportional to its radius. origin of the universe: http://www.scienceforums.net/topic/34196-origin-of-the-universe-matterantimatter/ relativity 101 http://www.physicsforums.com/showthread.php?t=314080

free will=free whim define 'you'.

the answer is: there is one flock of sheep in Scotland and they are black on one side.

http://www.coas.oregonstate.edu/research/po/research/tide/index.html

the earth orbits the center of mass of the earth moon system. the centrifugal force and the pull of the moon on the earth cancel exactly at the center of the earth and roughtly speaking at the poles. elsewhere they dont. btw. the math isnt as hard as you might think. many factors cancel out.

aether refers to the original aether. ether is used to refer to the newer concepts.

you would need to introduce some randomness. it could just go back and forth along one line through the center. I very much doubt that the electron probability cloud has such a distribution. if thats what you are thinking then my advice woud be not to bother.

dr einstein (why do people drop the 'dr') in later life began to say that in his opinion the ether theory shouldnt be totally thrown away. in his view spacetime was the ether. one of the arguments against ether is that it produces no drag on the earth . but what about electrons in a superconductor. why can they pass through solid matter without any drag?

cont open the website without crashing my computer.

the PAH's in space seem more interesting to me. what would life in space do with a sugar molecule? theres no oxygen to burn it with.

think of the rod as a long spring. if you pushed hard enough it would become degenerate. like white dwarf material.

the idea of stretching space would make more sense in the case of like charges repelling. stretching space puts energy into it. overlapping 2 like charges doubles the field at every point which quadruples the energy. hence they would naturally repel. in that sense gravity is actually backward. thats why gravitational potential energy is considered negative.

accelerate or 'is moving'? show us some math. how do you calculate that it would bounce quicker?

time began at the big bang. at no time did 'nothing' ever exist. therefore something didnt come from nothing.

electric and magnetic fields of moving objects also become length contracted. I assume that gravitational fields to the same.

a light wave like all waves can be seen as moving by means of 'wave generators'. these generators are at every point of its wave front. each produces a wave that spreads out in all directions but they cancel in all directions except forward so that the resulting wave exactly reconstructs the original wave one step ahead of where it started. this is useful when visualizing how it will behave when diffracting around a corner. in a conductor (metal) the electrons are free to move and therefore no electric field can penetrate it for more than an infinitesimal time because the electrons move and generate a field that exactly cancels out the penetrating field. the result is that light is reflected off its surface. in a dielectric the electrons are bound and therefore not free to move beyond certain limits. surprisingly a dielectric behaves exactly the same way a conductor does just to a lesser degree. some of the light will be reflected off its surface. the rest will continue to travel on through the material at a reduced speed. be aware though that there is a group velocity and a phase velocity.

water is abundant in the universe. i would assume that uranus and neptune are largely made of water. any larger than that though and it will begin to retain hydrogen and helium and become a gas giant.

sounds like a dielectric.

could the cause be nonlocal? some kind of entanglement?

the electron cloud can occillate around the nucleus. in fact, if the charge density is uniform, then it will resonate.

the paper states that the recession rate of the moon would be greater in the past because the moon was closer (tidal force is inversely proportional to the cube of the distance). it then states that this contradicts the geological evidence that the rate was slower in the past.

no such thing as 3 dimensional twist. no matter how many dimensions space has, twist can always be described with a 2 dimensional plane. of course, that plane can have any orientation in space.

iron filings would do the same thing in a magnetic field.