In Photos: The Secrets of Everything

Exploring questions like whether you could survive a falling lift or why the sky is blue.

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Asteroid Impact

Greg Foot tries to work out whether we could survive an asteroid impact.
London Lido

Greg Foot at a London Lido about to discover whether we can survive extreme cold.
Spartan Race

Greg Foot after he had completed the Spartan Race to burn off calories after he’d eaten lots of fast food.
Greg and Dr Zbigniew

Greg Foot with chemist, Dr Zbigniew Szydlo known as Doc, in his workshop .
Human Flesh

Greg Foot wonders what humans taste of.
Experimenting with Fire

Greg Foot experiments with fire – to discover why it’s hot.

Asteroid Impact