Download free The Many-Body Problem in Quantum Mechanics (Dover Books on Physics) pdf
Μπορεί κανείς να καταλάβει την κβαντική μηχανική
Classical Mechanics-- and Quantum Mechanics are the two major sub-fields of mechanics. Classical mechanics is concerned with the set of physical laws describing the motion of bodies under the influence of a system of forces. The study of the motion of bodies is an ancient one, making classical mechanics one of the oldest and largest subjects in science, engineering and technology. It is also widely known as Newtonian mechanics.
wormhole A hypothetical passage or corridor between widely separated points in space-time. It's a concept that allows travel at speeds effectively far greater than the speed of light by defeating the limitations of normal time. Some cosmologists believe that wormholes exist. A few have even suggested that space travelers might someday manufacture them to facilitate travel to and from distant galaxies.
[ARTICLE] 'Extreme universe' puzzle deepens - the mystery surrounding the source of the highest-energy particles known in the Universe has grown deeper.
Physics beyond the Big Bang!
In this multiverse theory, you have a static universe in the middle. From that, smaller universes pop off and travel in different directions, or arrows of time. So does that mean that the universe at the center has no time?