Science, Maths & Technology
People, automobiles and statistics
...simple. Measure the length of your forearm. This is the distance between your elbow and your wrist. This is far from simple. You’d maybe like to measure the length between the axis around which your elbow hinges then a similar axis for your wrist, or simply from the back of your elbow with a bent arm to a bone in your wrist. But, either way, these are not well defined...