With more three million subscribers, Veritasium is one of the most popular science channels on YouTube. Here readers will find brainy, entertaining videos on such topic as the World's Roundest Object, the Northernmost Town on Earth, and the Science of Hair Removal in Slow Motion. Videos have been divided into categories for easing scouting. For example, under Misconceptions, viewers will find quippy clips, such as Where Do Trees Get Their Mass From? and Misconceptions About Temperature. The Test Yourself! category features problems to solve and quizzes to conquer. And readers won't want to miss the Atomic Bonding Song and Experiments A Cappella, featured under the Songs category. For readers looking for three- or four-minute explanations of life's mysteries, Veritasium is a lovely place to begin.