Our guest this week is Grant Thompson. Grant was an airline pilot when he started posting videos of his crazy science experiments and DIY projects. His channel became wildly popular for making science fun, and he's become home to nearly 10 million subscribers. He's been featured on The Dr. Oz Show, Good Morning America, Discovery Channel, and Jimmy Fallon. As "The King of Random," Grant's mission has been to share the joy of experimenting and hands-on learning. Through constant experimenting and undying persistence, he's become one of the most-subscribed YouTubers in the world.

For show notes visit: http://kk.org/cooltools/grant-thompson-the-king-of-random