Systems of Temperature

If we are going to talk about temperature, we need a system. Common systems are:
Fahrenheit: lousy for scientific use.
Centigrade: 0 C - 100 C
Kelvin: same degrees as Centigrade; but zero is absolute zero. All molecular motion stops. ``Atoms would lie on the floor like marbles''.

Some temperature in the Kelvin system:
0K - ABSOLUTE ZERO!!!
77K - Temperature of liquid nitrogen
290K - temperature in this room
373K - water boils.