Computers may be used at almost every stage in the design and production of a new car, but most cars start with a good old piece of paper and pens. A concept car comes further down the line, but ...

Although we say it's impossible, people still like to come up with ideas. Perpetual motion machines are sort of like playing the lottery. People think they have a much higher chance of winning ...

OCR 21st Century Unbalanced forces on an object will change its motion. Ideas about force and momentum can be used to explain road safety measures. How can we describe motion in terms of energy ...