The primal heat from the deep interior of the Earth is mainly due to radioactive decay, with a small contribution due to gravity compression.
radioactivity
Main sources of internal heat are Magmatism and Radioactivity.
They got their powers by a meteoroid. That the thing in the jail. All the radioactivity on it was transferred to the villains, and they got super powers.
Heat flow's from cooler objects.
Apparently No, heat flow in oceanic crust is higher than continental crust
It is called radioactivity.
No, heat energy does not flow indefinitely. It will continue to flow until a thermal equilibrium is reached where all objects involved reach the same temperature. Once this equilibrium is achieved, there will be no further flow of heat energy.
negative heat
Heat flow is made by conduction, convection or radiation.
heat flow and waves
Yes, heat can never flow from a colder object to a hotter object, as stated by the principle that heat can never flow from a lower temperature to a higher temperature.
Interatomic separation causes heat to flow slowly. As there will be time involved in transferring heat at a gap.