[quote=whizzball1] "A temperature is a numerical measure of hot and cold. Its measurement is by detection of heat radiation, particle velocity, kinetic energy, or most commonly, by the bulk behavior of a thermometric material.""Heating is transfer of energy, from a hotter body to a colder one, other than by work or transfer of matter. It occurs spontaneously whenever a suitable physical pathway exists between the bodies.""Thermal energy is a term sometimes used to refer to the internal energy present in a system in a state of thermodynamic equilibrium by virtue of its temperature."Heat is energy. Scientists painstakingly stress that heat is not energy. It is the transfer of Thermal Energy--more accurately, kinetic energy--from one mass to another. I believe Vsauce was talking about thermal energy, but used heat for layman's terms. I'll watch it shortly. [/quote] This just isn't worth arguing about.