The Physics of Cold Spots: Part 1 of 2
Cold spots are one of the hallmarks of a haunting. Any ghost hunter worth the title will carry some sort of thermometer for testing the temperature of the air. Many people report that the ambient temperature drops when ghosts are present (or about to be present). The standard explanation is that the spirits are drawing the energy from the air in order to manifest. But what does that mean, and is it plausible?