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.
How many steps does a person take per day? A: The average human in the United States walks approximately 5,900 steps per day. However, many pedometers and doctors suggest that people should walk, on av... Full Answer >