The xiphoid process is the smallest and most inferior region of the sternum, or breastbone. At birth, it is a thin, roughly triangular region of cartilage that slowly ossifies into a bone and fuses with the body of the sternum.
City Blocks differ in size, but the typical square city block reaches 16 or 17 per mile, or 2.21 to 2.50 Acres. Engineers use a typical city block as 100,000 sq. ft. for calculation estimates, which is about 17 blocks per mile or 2 1/4 acres. (A football field is 300 feet by 160 feet, which is 1.1 Acres.)
Best Answer: Chicago was built on a grid system with a major street every half mile and four blocks every 1/2 mile. This would make most of the standard city blocks in Chicago 1/8 mile long and 1/8 mile wide. There are some areas of downtown Chicago where the blocks are 1/16 mile long.