Californians Randy, Cliff and Red are attacked by a shark. In South Africa, newlywed surfers suffer a similar fate.
Dealing with crises has always been one of science's greatest challenges. In this episode, Stephen Hawking and his team investigate astonishing breakthroughs that are making human life less fragile in the face of danger. First on the agenda, Chris Eliasmith looks into a helicopter that can take p...
Reveal the surprising engineering connections between Japan's 'bullet train' - the world's first high speed railway and other ancient inventions.
A routine flight turns deadly when the pilots hear gunshots in the cabin. Moments later, the aircraft dives and crashes. With 43 people dead, investigators struggle to determine the intended victim.
Africa: Two to three million years ago, a massive explosion tore apart an enormous volcano in Ea...National Geographic Channels