Humans have 24 ribs (12 pairs). The first seven sets of ribs, known as true ribs (costae verae) also known as vertebrosternal ribs, are directly attached to the sternum through the costal cartilage. Rib 1 is unique and harder to distinguish than other ribs. It is a short, flat, C-shaped bone.
Quick Answer. The length of a trip halfway around the world by boat depends on the weather conditions, size and type of the boat and the starting and ending points. Some cruise lines offer 106-day around-the-world packages, so one can estimate that a cruise halfway around the world takes about 53 days. Keep Learning.
Answers.com Â® WikiAnswers Â® Categories Science Physics Mechanics Kinematics The moom revolves around earth every 27.3 days and is 390000 km from the center. How long would it take a satellite launched to a distance of 6700 km from the center of the earth to orbit the earth? it is 88.5 minutes.