mastersamwise

not necessarily- the expansion of the universe is essentially depends on the mass (and thus the force of gravity) in the universe. I dont think that anyone has been able to even hope to approximate the mass of the galaxy, that would be like aristotle knowing the exact distance to the sun- a stab in the dark! Therefore there are three possible universe endings 1. the value of the universal mass is high- the universe comes to a 'big crunch' after collapsiong in under its own gravity 2. The mass is spread out just enough just enough so that expansion stops, but is not enough to shrink either- the universe goes out in the afore mentioned 'whimper'! 3. The amount of mass is small and thus it is possible the universe will carry on expanding Im not sure of the overall outcome of the last option, i wonder if the mass of the universe has all been created or is it still being created on the edges of the big bang 'shockwave' any answers anyone?

As a general note i have to say that although i concede that quantum physic is one of the most powerful tools of undertanding the world that we have had to date I have to err on the side of Einstein, he never truly accepted the field and i have to say i agreee; it has lead to some 'interesting' theories that noone can prove or disprove. I may sound old fashioned but surely this is contrary to the very nature of science (empirical facts and all that....)

I would imagine the edge of the universe to be a nothingness at an energy level of 0 (the minimum ground state for a particle is 1) therefore there is no particles of any sort, and if E=mc^2 holds then if there is no energy there is no matter.....if relativity works in a void that is

im not absoloutely sure that you could change the spin of an electron? How could you be cure what you were seeing was not some sort of quantum tunneliung effect? i'd be interested in the article if you have it!

A device to measure quantum level movements is, by heisenburgs uncertainty principle impossible. So far we can only imagine what it is we are seeing but something tells me that we will evetually have a machine that will do it.....is there any way to measure or observe things without measuring their reactions with something else?