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Who Discovered Gold?

Who Discovered Gold?
Introduction Gold is a chemical element, the most ductile and malleable of all pure metals in the world. It is found in grains or nuggets in rocks and other natural formations. Gold has a bright yellow color. The hue varies from one type of gold to another, as does its value. Arabian gold and Bangkok gold may be considered superior to Italian or Chinese gold. Nothing on earth is more fascinating and desirable to humans than gold. Because gold occurs in an uncompounded form, it was probably the first metal ever discovered and used by man. Discovery and Early Use of Gold Gold occurs in various parts of the world. No single person discovered gold but there are many traces of its use by ancient peoples. One early reference to it was made by Tushratta, a king of Mitanni (now northern Syria) in 2600 BC. He remarked that there was more gold than dust in Egypt. Such abundance of gold especially in Nubia made Egypt a rich country. By 1500 BC the metal was being used as a means of exchange in...

Who Discovered Multiple Sclerosis?

Who Discovered Multiple Sclerosis?
An autoimmune disease that affects the central nervous system, specifically the spinal cord and the brain, multiple sclerosis inflict insurmountable amount of suffering and pain to patients. Patients usually experience demyelination, a condition wherein there is damage to the myelin sheath of neurons. Aside from knowing its symptoms, risk factors and treatments, it is also good to know things about the history of this disease including who discovered multiple sclerosis. The Discovery of Multiple Sclerosis Who discovered multiple sclerosis? French neurologist Jean-Martin Charcot was the very first one to describe this medical condition some time in 1868. Because of his numerous contributions to the world of science, he was considered the founder of modern neurology. Aside from neurology, he also contributed a lot to the field of psychology. Additional Facts and Other Important Details The U.S. National Multiple Sclerosis Society defined four subtypes of multiple sclerosis in 1996, namely...

Who Discovered the Element Lithium?

Who Discovered the Element Lithium?
Represented by the atomic number 3 and symbol Li in the periodic table, lithium is described as a silver-white and soft metal. It is one of the alkali metals, which is generally considered the lightest amongst the various kinds of metals. Likewise, it is also the least dense amongst the different solid elements. More than anything else, it is known for its important uses in the fields of medicine, electronics and general engineering. The Discovery of Lithium Who discovered the element lithium? In 1817, a Swedish chemist named Johan August Arfwedson became the very first person to discover this chemical element. The result came from his analysis of a petalite ore. Before that, a Brazilian scientist named Jose Bonifacio de Andrade e Silva discovered lithium aluminum silicate or petalite in 1800. This finding was instrumental, particularly in the discovery of lithium. Swedish chemist Jons Jakob Berzelius named it ‘lithos,’ which later on was standardized as lithium. Additional Facts and...

Who Discovered Saturn?

Who Discovered Saturn?
Few facts about Saturn need to be clarified as much as its discovery. The Romans, Greeks and Hindus all knew of its existence. Galileo did not discover Saturn in the 17th century, but he was the first to study its rings. Facts and Figures Saturn has an equatorial diameter of 107,500 km and a polar diameter of 119,600 km. its perihelion is 1,349,000 km; the aphelion is 1,508,900 km and the mean is 1,500,000 km. The rotation is 10.66 hours. Saturn has a revolution of 29.45 years. It has more than 60 satellites, all of which have orbits. Surface and Geology One of the established facts about Saturn is that it’s flat at the poles while projecting at the equator. This makes it more oblate than other planets. Another notable trait is that its density is less than water. However it has a dense core brought about by the gaseous atmosphere. Saturn is 20% smaller than Jupiter but its mass is only 95 times that of Earth. By contrast, Jupiter has a mass 300 times that of Earth. Its internal structure...

Who Discovered Alaska?

Who Discovered Alaska?
Alaska is one of the interesting and beautiful places to visit and a great spot for vacations. The beauty of the place would at times make people wonder who discovered Alaska. We can never really tell who it was exactly that discovered Alaska since there were already Indians, Aleuts, and Eskimos who were already living there before the first white man came. Outsiders Discover Alaska From what we know, Vitus Jonassen Bering was the first outsider who discovered Alaska. He was a Danish explorer who found the place in 1728 on a voyage coming from Siberia while on service for Russia’s navy. He traveled along the lines of St. Lawrence Island. However, he was unable to reach Alaska’s mainland. Read more VN:F [1.9.22_1171]please wait...Rating: 7.2/10 (16 votes cast)