For instance, the motion of a spacecraft, regarding its orbit and attitude , is described by the relativistic theory of classical mechanics, while the analogous movements of an atomic nucleus are described by quantum mechanics.
According to the NHS, the average Briton walks between 3,000 and 4,000 steps a day - significantly less than the Fitbit target. Yet many people do significantly more, and for them 10,000 steps might not be much of a target.
Topics | Fitness | Walking | How much should I walk in a day? Many sources consider a daily total of ten thousand steps (about five miles) a day an active lifestyle. Two to three thousand steps is considered a sedentary lifestyle. Moving six thousand steps or more per day lengthens your life span, and eight to ten thousand steps per day helps you lose weight.