Relativistic heat conduction

Relativistic heat conduction is a way of looking at how heat is moved or transferred in the universe. It is based on something called the theory of relativity, which means that things move differently at very high speeds, like very near the speed of light. Heat conduction happens when something hot touches something that is cold and the heat moves from the hot thing to the cold thing. In relativistic heat conduction, this heat transfer happens differently if the things are moving really fast. Imagine if the hot and cold things were moving away from each other really fast as if they have rockets on their back, the heat would move differently than if they were standing still. This is because the things would be moving at a speed near the speed of light and this means the heat would have to move fast in order for the transfer to occur. So to put it simply, relativistic heat conduction is the way that heat moves or transfers when things are very close to the speed of light.