Charles The Hammer Martel was the son of Pepin of Herstal and his second wife Alpaida. He had a brother named Childebrand, who later became the Frankish dux (that is, duke) of Burgundy. In older historiography, it was common to describe Charles as illegitimate.
Walking each mile in 20 minutes. If you feel comfortable and safe going a bit faster, a better workout is available in the same one-hour time period. By increasing the treadmill rate to 3 miles per hour, that 150 pound person would burn about 400 calories per hour on a level treadmill.
Step 5. Take the number of minutes it took to walk 1 mile and calculate your speed. Divide 60 by the number of minutes it took you to walk 1 mile. If it took you 20 minutes to walk one mile, you walked at 3 mph, or 60 divided by 20. If you walk a mile in 15 minutes, divide 60 by 15 to get a walking speed of 4 mph. Alternately, divide the number of minutes you walked 1/2 mile by 30.