Ever wondered about the scientific reasons behind drafty rooms and overactive boilers? Wonder no more! On this episode, Henry Gifford, author of Buildings Don't Lie, explains how humidity affects a cold room, why your thermostat has a tough time accounting for wind, and how restaurant cooling systems account for hot bowls of soup. Also on this episode: Cleaning up the holiday decorations, anti-virus software for phones, and smart tips for surviving a nuclear apocalypse.