    Ð°Ð½ Obstetrician is a physician who has successfully completed specialized education and training in the management of pregnancy, labor, and the puerperium (the t â¦ ime-period directly following childbirth).n Obstetrician specializes in the care and treatment of pregnant women during their pregnancy, labor, delivery and the postpartum period.
Animal skins were used as sails for the earliest boats and rafts. The Egyptians and other ancient people wove reeds together in mats to make sails, but the Egyptians were also the first to make cloth sails as early as 3300 B.C. Great sailors of the Mediterranean region like the Phoenicians sailed under cloth sails.
What Pirate Ships Were Made Of. Pirates werenât picky about what materials they used in their ships, although some were more popular than others. Some of the more commonly used materials were red oak, white oak and pine, for their strength and durability. Pirates were usually somewhat picky about their sails.irate ships were usually coated with very watertight paint, so her crew wouldnât get wet. A ship would usually have a good crew, who had a lot of experience at sea. Materials that made up a pirate ships were strong and most of all, ships were well cared for by her crew.