History of Iron and Steel I have researched the origin of hot metal cars for many years. In the very early years of iron production and later steel production historical is sketchy at best. Almost in plant equipment was built on sight and sometimes no drawings were used. The ability of American fabricators in the late 1700 and the 1800 amazes me. A case in point is Otto Mears a German immigrant that built most of the three foot gauge railroads in the Colorado Rockies. He had a third grade education
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Sand dunes are a very important part of the ecosystem. They hold many plant and animal species‚ some of which are even endangered or on the verge of extinction. People of the community and non-profit organizations have been trying to preserve the sand dunes for many years. Sand dunes are destroyed by winter storms and hurricanes. But that is just part of nature. People destroy sand dunes. When people walk on sand dunes‚ they leave weak spots. The wind picks up the sand and carries it out to sea
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campaign of nonviolent protest against the British salt tax in colonial India which began with the Salt March to Dandi on March 12‚ 1930. It was the most significant organized challenge to British authority since the Non-cooperation movement of 1920-22‚ and the Purna Swaraj declaration of independence by the Indian National Congress on December 31‚ 1929. Mahatma Gandhi led the Dandi march from his Sabarmati Ashram to Dandi‚ Gujarat to produce salt without paying the tax‚ with growing numbers of Indians
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Isolating the Components of a Three Component Mixture The purpose of this experiment was to separate the component of three mixtures sand‚ sodium chloride and calcium carbonate then calculate the percentage by mass of each component recovered from the mixture. The other purpose of this experiment was to show us the students the concepts associated with physical and chemical properties of substances. Me and my lab partner‚ obtained a mixture of a un known proportion from the instructor and
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Bath Salts Since synthetic drugs have become a common theme in the news I wanted to look more into “bath salts” otherwise known as synthetic cathinones. The questions I was pondering were: what exactly do these “bath salts” do‚ how is this latest development in drug abuse affecting the brain and how can you treat someone on these dangerous chemicals? I used Google Scholar to research my topic. http://scholar.google.com/scholar?hl=en&q=Minnesota+Bath+Salts&btnG=&as_sdt=1%2C24&as_sdtp=
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Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
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Exercise No. 8 CARBOXYLIC ACIDS AND ACID DERIVATIVES I. OBJECTIVES: • To investigate the physical and chemical properties of Carboxylic acid and its derivatives • To understand the reactions of carboxylic compounds and derivatives. II. EXPERIMENTAL RESULTS Solubility of Carboxylic acids in 10% NaHCO¬3 Acetic acid - formation of bubbles Benzoic acid - formation of bubbles Test for Acetic acid NaOH + Acetic acid - blue litmus paper turned red NaOH + Acetic acid + FeCl3 - red colored
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about water on top of water. The salt water and fresh will have different effects on the experiment. The experiment also see if the warmer the water is the different way it look. Purpose: The reason that I am doing this project is to see if water can float on water and to see the water at different densities‚ and salinity. To see if the salt water would sit on the fresh water and how it would reaction to the effect of the experiment. Also to see if the salt water will mix with the fresh water
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Iron Making Technology A thousand years before the age of empires in Rome and Greece‚ the Iron Age was ushered into the world with the clank and clatter of the blacksmith’s anvil. The transition from the Bronze Age occurred at different times in different spots on the globe‚ but when and where it did‚ the distinctive dark metal brought with it significant changes to daily life in ancient society‚ from the way people grew crops to the way they fought wars. Iron has remained an essential element
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cannot produce enough of an organic chemical compound that it needs in tiny amounts‚ and has to get it from food‚ it is called a vitamin. Sometimes the compound is a vitamin for a human but not for some other animals. For example‚ vitamin C (ascorbic acid) is a vitamin for humans but not for dogs‚ because dogs can produce (synthesize) enough for their own needs‚ while humans cannot. A vitamin is both an organic compound and an essential nutrient the body cannot produce enough of on its own‚ so it has
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