Thrill Factor explores the exciting world of thrill rides, waterslides and other heart-pumping experiences through a scientific lens. Sharing their passion for both adventure and science, hosts Kari Byron and Tory Belleci dive into the amazing engineering, physics and biomechanics that explain why these rides excite adrenaline junkies around the world.Whether it's jumping out of planes, racing IndyCars or plummeting down the world's tallest waterslide, each episode offers a different and daring thrill. Kari and Tory use themselves as guinea pigs, strapping in to these fast and frightening rides to collect data about the science of fun.