    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.
The most common type of Egyptian boats were made out of papyrus reeds. These type of boats were used to travel short distances. The reeds were bound toghether by ropes and wer â¦ e usually used for hunting fish. They were eather poled or paddled.Other boats were mad out of cedar wood imported from Lebanon.ome materials used have been: 1  wood. 2  metals, such as steel and aluminum. 3  fiberglass (poyester resin or epoxy mixed with glass fibers). 4  carbon fiber composites. 5  plastics. 6  ice (no, I'm not kidding), pycrete (14% wood pulp or sawdust and 86% ice). 7  animal hides. 8  cement (See concrete ships below). 9  cloth.