How It Works | The Atomic Bomb Theory and design are explained using plutonium or uranium. 2015-03-02 18:26:12 - The Engineer More Posts Faces of Earth | 02 - Shaping the Planet 11 Worst Cruise Ship Incidents Jay-Z featuring Alicia Keys | Empire State of Mind (2009) Parallel Worlds | Weird or What? | William Shatner Carl Sagan | Cosmos 5 - Blues for a Red Planet (1980)