The parallel universe theory is the only thing that can explain why our part of the universe is so finely tuned as to allow intelligent life to exist even though there is no direct evidence. According to recent speculation gravity can be felt between membranes and therefore large masses from...
I've never understood how the aether was dispensed with. It is said that Maxwell's equations don't require it. If that is the case, then where do the x, y and z axes come from if not from an aether.