Mach propulsion

Amazing answers to your curious questions

JD Savage investigates a mysterious, invisible force that rules the universe. Just watch out it doesn’t pull you in!

An old-fashioned hardback book often still beats the internet, doesn’t it? When you can get hold of one. Right now, there’s one, in a package with my name on it, stuck somewhere between a second-hand

Three slipcased volumes, 1960 pages, 665,000 words and 3584 images – now you know why you’re being asked to stump up £395 for a work on supercharging and turbocharging. In its simplest terms, both the

Surrey-based EV motor developer Protean has its roots in a firm called PML Flightlink, which made headlines in 2006 when it fitted four in-wheel motors (IWMs) to a Mini Cooper to give 640bhp, a sub-5.

Scientists distinguish between weight and mass, which may seem pedantic until you see what happens on a world where gravity is radically different to Earth’s