Gadgets

Race to the bottom of the ocean

The Mariana Trench in the western Pacific is the deepest known place on Earth. The bottom sits nearly 11km below the surface of the ocean, the pressure of the water is roughly the same as the weight of 48 Boeing 747s and anyone journeying down won’t have seen natural light for 10,000m.

But that’s not stopping James Cameron or Richard Branson, whose Virgin Oceanic is backing pilot Chris Welsh. Cameron and Welsh are competing to be the first solo diver to reach the sea bed. And if you’re struggling to comprehend exactly how deep it is, here’s a handy graphic…