Say, do you like mystery stories? Well we have one for you.. The concept: relativity. That strange fantastic relationship between time, distance, and mass. Before we're finished, I think...
[Professor Alice Roberts] How do you start to get close to animals that lived hundreds of millions of years ago? Dinosaurs (Di-no-saurs - D-di-no-saurs - D-d-di-no-saurs) [Dallas Campbell] Dinosaurs...
[Morgan Freeman] So. What are we really made of? Dig deep inside the atom and you'll find tiny particles held together by invisible forces. (held together by invisible forces.) Everything is made up...