Dr Karl explains how most of the water in the world was created at the moment of the Big Bang. It's still being made across the universe whenever oxygen and hydrogen get together under the right conditions, but none of it's getting to Earth.
As we live our lives, an array of invisible forces are exerting their influence on us. Gravity pulls you into the seat. Light waves hit you from the screen. Sound waves roll in from everywhere. Electromagnetic radiation from around the universe races through your entire being and if it weren't for the nuclear forces holding every sub-atomic particle in your body together you would fall apart. In short you would cease to exist. This show is all about Force. That immutable, invisible thing that makes the world 'go round'.
This episode looks at speedy science with a focus on fast vehicles such as jet boats, go-karts, rockets, V8 utes and hydrofoil jet skis. Plus, find out just how fast the Earth is moving through the universe, meet the Aussie who holds the fastest land speed record and learn all about thermodynamics.
The Totally Wild team travels to Western Australia for a film festival. Brooke catches up with a junior scientist with grand plans for the future and we learn what can and cannot be recycled.