Those few precious days off you have during the holidays are best spent taxing your brain as little as possible. But who says you can't learn something even when away from work or school? If you're lacking a fireplace to curl up next to, this wonderful video from AsapSCIENCE will keep you cozy while educating you on the science of how a cracking fire actually works.

Grab a cup of cocoa, find a warm blanket, and turn off your phone for the next hour.