Tuesday, March 17, 2020

Ancient Egyptian medicine essays

Ancient Egyptian medicine essays Back in time thousands of years ago, when the ancient Egyptians were taking place in conquering human civilization, a concept of life after death was one of their common beliefs that caused them to create the method of Embalmment to preserve the bodies of their great leaders and rulers, assuming that the body is something to be taken to the next life after death so it has to be perfect to satisfy the gods Several methods were found, and the perfection of embalmment was distinct between individuals depending on the wealth of the dead A king had the highest level of care and sophistication of the embalming procedure And others individuals had less labor on their bodies rated by the cost they can afford to pay to honor their dead The embalmment ceremony was a complicated procedure that takes several days to accomplish, and it has to be done by a specific class of people that are the embalmers The dead man's body was taken away from his home to a special workshop in the form of a tent which was called 'the good house', or 'the place of purification', or the 'house of gold'. First the body was washed with Nile water. As a first step before starting the surgical steps, then an incision was make in the left side and the liver, lungs, stomach and intestines were removed. These organs were placed in four vessels called Canopic jars and their place in the body was filled by spices and resins, At this period the brain, too, was removed through the nose openings (nostrils) and the cavity filled with linen or with mud. The purpose of the linen padding was to preserve the face intact; The heart was left in the body, for it was the seat of the intelligence. Then the whole body was preserved in precious oils and resins After the religious democratization this method was practiced only for the pharaohs and the very exalted, the cheaper method of soaking in salt was used for ...

Sunday, March 1, 2020

Interesting and Useful Facts about Iron

Interesting and Useful Facts about Iron Iron is one of the elements you encounter in pure form. It is essential for nutrition and used in a variety of household objects. Here are some quick facts about iron. You can find detailed information about iron on the iron facts page. Iron Facts Iron is an element that has been known in its pure form for at least 5,000 years. The name iron comes from the Anglo-Saxon word iron and Scandinavian iarn for the metal.The element symbol for iron is Fe, which comes from the Latin word for iron, ferrum.Iron is one of the most plentiful elements. It comprises about 5.6% of the earths crust and almost all of the earths core.The single largest use of iron is to make steel, an alloy of iron and a smaller amount of carbon. According to achaeological records from Anatolia, man has been producing steel for at least 4,000 years.Iron is a transition metal.Iron is not always magnetic! The a allotrope (or form) or iron is ferromagnetic, yet if it is transformed to the b allotrope, the magnetism disappears even though the crystal lattice is unchanged.Animals and plants require iron. Plants use iron in chlorophyll, the pigment used in photosynthesis. Humans use iron in hemoglobin molecules in blood to allow for the transport of oxygen to tissues throughout the body. Although iron is an essential mineral, too much of it is extremely toxic. Free iron in the blood reacts with peroxides to form free radicals that damage DNA, protein, lipids and other cellular components, leading to illness and sometimes death. 20 milligrams of iron per kilogram of body weight is toxic, while 60 milligrams per kilogram is lethal.Iron primarily forms compounds with 2 and 3 oxidation states.Iron is formed via fusion in stars that have sufficient mass. The sun and many other stars contain significant amounts of iron.