The most fascinating fact about temperature is that it doesn't exist the way we perceive it. What we feel as "cold" and "hot" is actually how fast particles are vibrating, how much kinetic energy they have. The more energy, the more they vibrate, and the hotter we perceive them. Cold doesn't exist. It's only the absence of heat (kinetic energy). Cold objects feel cold not because they transmit the "cold" to you but because they absorbe your own energy. It just doesn't exist. It's mind-blowing.