Synopsis

The next time you release a ball, and it returns to earth instead of escaping into the void, offer thanks to gravity. At this very moment, you and everything within this room are subject to its relentless pull. Doubt it if you will, but push a book from your desk; it will fall with unwavering certainty towards the Earth's core. This is gravity – the force generated by the Earth’s immense mass and composition. It exerts a downward pull on you, on every visible object, even on the air and the ocea