The hip is a ball-and-socket joint. The socket is formed by the acetabulum, which is part of the large pelvis bone.The ball is the femoral head, which is the upper end of the femur (thighbone).he hip is a ball-and-socket joint. The socket is formed by the acetabulum, which is part of the large pelvis bone.
Most of us carry credit cards and ATM cards. These, typically, have sixteen digits on the front. These digits are the unique account number for the card. For obvious reasons, just any sixteen digits will not work, they follow pattern. The first few characters of the card number describe the type of card.
This page provides information about identifying a credit card type from a card number's numeric range and number of digits. Valid length: 15 digits. First digit must be a 3 and second digit must be a 4 or 7. Valid length: 14 digits. First digit must be 3 and second digit must be 0, 6, or 8. The ranges are: