For the last decade, mountain-bike geometry largely followed the same script. It seemed like every year bikes got longer and slacker and we all got told that somehow a couple millimeters here and a ...

Challenge 5 is all about working out an unknown angle. Maths teacher Chris Smith and pupils from Grange Academy are here to explain. The Maths Week Scotland Daily Challenges have been set by the ...

In Disney’s 1959 film Donald in Mathmagic Land, Donald Duck, inspired by the narrator’s descriptions of the geometry of billiards, energetically strikes the cue ball, sending it ricocheting around the ...

Forbes contributors publish independent expert analyses and insights. William covers motorbikes, E-bikes, cars, trucks and mobility tech. Ascendant Chinese carmaker Zhejiang Geely Holding Group, ...