At first, it sounds crazy -- wouldn't hot water take longer to freeze? Weirdly enough, the opposite is true. Join Lauren to learn more about a mystery that's puzzled humanity for centuries in this episode of BrainStuff. Whether the topic is popcorn or particle physics, you can count on the HowStuffWorks team to explore - and explain - the everyday science in the world around us on BrainStuff. Download the New TestTube iOS app! testu.be/1ndmmMq Watch More BrainStuff on TestTube testtube.com/brainstuff Subscribe Now! www.youtube.com/subscription_center?add_user=brainstuffshow Watch More www.youtube.com/BrainStuffShow Twitter twitter.com/BrainStuffHSW Facebook facebook.com/BrainStuff Google+ gplus.to/BrainStuff