Warm Hands (Thermal Equilibrium)

“Thermal equilibrium,” Jeff starts to explain, “is when… there’s no flow of thermal energy between two connected things, because they’re the same temperature,”

“What?” Bob squinted again. “I’m still waking up,”

Jeff gestured vaguely with his sandwich, and Tom managed to grab one of his cookies. “It’s sorta tied into the concept of being cold… being a lie. Cold itself doesn’t exist, but an absence of heat does,”