1)I am very interested to know about studies being done into the uses of atoms at 0 degrees Kelvin (I understand this as the temperature at which atoms cease to oscillate?) Apparently this has possible uses as nano-computers whereby a normal object, such as a coin can house massive memory. This is what I have heard from some of my collegues in physics. This is very interesting. If you know anything about the mechanics of extremely low temperatures on atoms, please write. 2)The average temperature of the universe is around 3 or 4 degrees Kelvin. Is this true? How can this be? Please help.