Originally Posted by MrBungle
i thought all molecular activity stopped at absolute zero. what could we learn from that that we can't learn by just taking a picture?
Well... matter by definition require mass and motion. If matter stopped, then it can't be matter.
Also, how do they achieve such low temperatures? They isolate a slowest moving particles from a gas cloud using a magnetic/laser funnels.... You can't make anything colder without using something colder. Any method of cooling would require something colder otherwise it would add heat to the particles. Thermodynamics! Absolute Zero is impossible.
Again, check Bose-Einstein Condense.... it is a state of matter that we recently discovered. Atoms co-exist in the same space! Quantum Physics is strange...