today's scientist......we must know about him.

Famous Scientist Herman Frasch Herman Frasch, Hermann Frasch (December 25, 1851, Oberrot bei Gaildorf, Württemberg - May 1, 1914, Paris) was a mining engineer and inventor known for his work with petroleum and sulphur.He emigrated to the United States in 1868. He began practicing pharmacy in 1868, and after his arrival in the United States entered the laboratory of John Michael Maisch at the Philadelphia College of Pharmacy. In 1874 he established his own laboratory. Many of his earlier inventions were connected with the production of oil, salt, wax and white lead. In 1885 he started the Imperial Oil Company, Petrolia, Ontario. The oil from Petrolia contained up to 0.7% sulfur, which gave the petroleum made from it a strong odor and the name skunk oil, which was practically not marketable. After several tries he was able to desulfurize the petroleum by reacting the oil vapor with a mixture of iron, lead, and copper oxide. The formed sulfides were roasted in air to remove the sulfur, to reform the oxides which could be then reused. His product became a serious competitor to Pennsylvania oil. The Standard Oil of John D. Rockefeller in Lima suffered from the same problem. Thus, Rockefeller bought the Empire Oil Company and employed Herman Frasch to solve this problem with John Wesley Van Dyke. The Hermann process worked for the first time in an industrial scale in 1888. As he was paid in shares of Standard Oil, Herman Frasch became rich with the success of his method. During the search for oil in Louisiana, near the present-day town of Sulphur, sulfur was found under a layer of 200–300 m of quicksand. All attempts to get to the sulfur with conventional mining shafts ended in disaster. Herman Frasch bought the surrounding area, but the sulfur containing area was not on his property. On October 20, 1890, he took out three patents for the Frasch Process. He then made a contract with the owners of the sulfur deposit. He erected a plant at the location of the sulphur deposits, and, by sending down superheated water through a boring of 1,000 feet, he melted the sulphur. The melted sulphur then ascended to the surface through an inner tube in the boring, and was pumped into bins several feet high, in which it solidified, and the blocks were later broken up and loaded directly onto rail cars. The result of the invention was a reduction of the importation of sulphur into the United States to less than one-tenth of its former proportions, and a corresponding increase in home production. The first sulfur was extracted in 1894. High water and energy consumption, as well as the presence of toxic hydrogen sulfide, were problems which had to be solved. Herman Frasch became head of the Union Sulphur Company which dominated the sulfur market until his patents ran out in 1911. Herman Frasch was accounted as the sulphur king. After the sulfur deposits where exhausted the company changed its focus from sulfur to oil. Frasch was awarded the Perkin medal in 1912. Frasch's surname is often mis-spelt Frash.Mining engineering is an engineering discipline that involves the practice, the theory, the science, the technology, and application of extracting and processing minerals from a naturally occurring environment. Mining engineering also includes processing minerals for additional value. The need for mineral extraction and production is an essential activity of modern society. Mining activities by their nature cause a disturbance of the environment in and around which the minerals are located. Modern mining engineers must therefore be concerned not only with the production and processing of mineral commodities, but also with the mitigation of damage to the environment as a result of that production and processing.Since the beginning of civilization people have used stone and ceramics and, later, metals found on or close to the Earth's surface. These were used to manufacture early tools and weapons. For example, high quality flint found in northern France and southern England were used to set fire and break rock.