Oops! The episode is no longer available but you can find other episodes below.Back to Everyday KnowledgeWatch Everyday Knowledge Episodes Onlineplay_circle_filledFool’s Gold Might Be Better Than the Real Thingplay_circle_filledCrying is Extremely Weirdplay_circle_filledHow do gas masks actually work? - George ZaidanmoreWATCH IN APPplay_circle_filledchevron_leftchevron_rightComments