There has never been a better time to be in the STEM fields. With each passing day, we are making new technological and scientific discoveries to help us evolve as a species and better understand the world around us. We’ve begun 3D printing organs, we’ve learned how to grow meat in a lab, and we just saw a black hole. Still, one mystery remains. How do you successfully fill a pool with Jello? In a recent video, YouTuber Mark Rober demonstrates how he used engineering and thermodynamics to solve this age-old problem.