Ancient Nubia occupied the territory beyond, or upriver, the first cataract while Ancient Egypt occupied the lands below, or downriver, of the first cataract. Historians have come to divide Nubia itself into sub regions with Lower Nubia comprising the lands between the first and second cataract and Upper Nubia being the regions beyond the second cataract.
How You Burn Calories. Your weight x distance = energy used walking. Time does not matter as much as distance. If you speed up to walking a mile in 13 minutes or less, you will be burning more calories per mile. But for most beginning walkers, it is best to increase the distance before working on speed. A simple rule of thumb is 100 calories per mile for a 180 pound person.
Walking Calorie Burn Rates. How many calories you burn when walking will depend on your speed, the terrain and your size. A slow, 2-mph pace burns 204 calories per hour for a 180-pound person. But, if that person doubles the speed to cover four miles in an hour, she can burn 409 calories. Take the walk uphill for the entire hour, and burn 490 calories. Smaller people burn fewer calories -- a 125-pound person uses 270 calories in an hour long, 4 mph walk. Larger people burn more -- a 185-pound person burns 400 calories walking for an hour at 4 mph.