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Phase shift? Someone's been watching too much Star Trek 
Phase shift is seemingly the only way to 'walk through' a solid object. Solid objects can't be walked through by definition but fluids can (as has already been pointed out) so changing the phase would allow people to pass through a wall.From an engineering standpoint, the only problem (assuming the technology for turning a solid wall into a fluid) is getting the fluid back into a solid, more specifically, the same solid. One solution might be some sort of 'container' to keep it in the same shape...but then how do you walk through it?.... Hmmmm!
How could i walk through a solid object, like a brick wall?Lets say you have a wall made of ice, if i apply heat the ice will melt and i can walk through what was a wall. Okay, im not actually walking through the ice wall, i have merely removed the wall.But why can't i do something similar to a brick wall? It will not melt, but could we apply energy to move the move the atoms, electrons or whatever "to one side", or to pack them tighter to the side thus opening up a hole in the middle?
The faster you run at the wall, the higher the probability is...
Quote from: JP on 02/12/2010 08:07:10The faster you run at the wall, the higher the probability is...Er, I'm not sure that's quite right. Isn't it more a question of timing?
The probability of a single particle tunneling through a barrier increases as you increase its kinetic energy (i.e. speed).
QM does not allow you to walk through a solid wall its just that there is a very small probability that as you are about to attempt that maneuver all the atoms together in the wall no longer recognise itself as being part of that wall and fall appart.
Indeed. As is the probability of the wall disintegrating because of quantum effects. In reality, these things won't have happened even if the wall had been around since the beginning of the universe--that's how unlikely it is.
So the thing to do is to stand by your brick wall for a few trillion years and hope to get lucky.