Rollercoasters are so thrilling because our bodies frequently experience changing forces. To a physicist, they also offer a perfect example of classical physics in action, which can be used as a teaching tool. This video offers a brief introduction to rollercoaster mechanics and how technology developments are bringing new opportunities for thrill-seekers. Find out more by reading the article “Twists, turns, thrills and spills: the physics of rollercoasters”, originally published in the August issue of Physics World.