Explained: The biology of being afraid & why this primal emotion is key to your survival

Drag-cutting designs boost your speed but there’s more to it than ‘smooth and skin-tight’

Each year, people flock to theme parks for the adrenaline rush delivered by roller coasters. But how are they engineered to delight and excite?

If you go down in the woods today…you’re sure of a big surprise. Namely, a group of adrenalin-seeking drivers speeding down tight forest tracks in powerful rally cars. It takes grit, endurance and upper body strength to be a professional in the World Rally Championship.

Creating the lightest bikes possible has always been the goal in road and cross-country racing, and that tradition managed to seep its way into downhill too. Does anyone else remember pro racers runni

Five seconds after climbing into a kart, I am entirely comfortable. My gloved hands find the steering wheel rim, my feet rest easily against the pedals and I am contented. Five seconds after actually