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Statue of liberty research
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Statue of Liberty was copper colored but now its green? The statue of liberty used to be a bronze color but now its green but why? The copper coating on the statue was originally a copper carbonate this gives the compound its original color that it had. Unfortunately, since the statue is near the ocean, salt water, which is the compound sodium chloride reacted with the copper coating and created a new compound. Also which was called copper chloride this compound has a distinct green color. An important physical property in the Statue of Liberty of copper is its color. In fact, people often refer to anything with a reddish-brown tint as being copper colored. Copper metal is fairly soft and ductile. Ductile means capable of being drawn into
The color of the stone of the statue of Kouros I would describe it as beige. The repairs to the statue are all over the body. It has cracks all over the arms, chest, back, etc. his headband is fastened by some thing on his head that looks like beads with spaces throughout them. It is from 590-580b.c during the archaic period. It stands pretty tall and also has a little staggered going on with his right foot back and his left foot up.
The medium is Granodiorite and the technique used was sunken relief, which is a technique were the sculptor chisels deep outlines below the stone’s surface. The sculpture does not seem to be originally painted. The Egyptians created coloristic effects through contrasting shadows and highlights. They used natural pigments to color some sculptures, however this was not the case. There are deeply cut areas in the back of the statue that create deep shadows and the use of natural light helps to bring up the highlights. The granodiorite has natural colors that helped the sculptor show more of those shadows and highlights. The statue is mostly in a warm hue and it may be caused because of the lighting inside the museum. These warm colors make the details stand out more. At a closer look of the structure there are different colors that can be easily identified, such as white, yellow, brown, black, gray and small spots of orange. The statues seems to be carved in one piece. There are no signs indicating it
The “Equestrian Statue of Marcus Aurelius” was one of the lucky bronze pieces from Ancient Rome. It was lucky because the Ancient Romans often melted their bronze creations to make new ones. While this helped supply artists with material for new statues, the melting of statues has left modern cultures without knowledge of possibly hundreds of Ancient Rome’s finest pieces. Thankfully this statue survived is now at the Museo Capitolino in Rome, where it is an inside exhibit to keep safe from the harsh elements and pollution.
The Liberty Bell is a symbol of American independence and is located in Philadelphia, Pennsylvania. The government paid around 100 pounds for the bell (A&E Television Networks). It was once rung in the tower of the Pennsylvania State House, which is now called the Independence Hall. This bell was used to call the lawmakers to meeting and the people of the town to hear the reading of the news. Isaac Norris is the person that ordered for a bell in 1751, and on the first ring the bell cracked. Once it was cracked, John Pass and John Stow melted it down and casted a new one right in Philadelphia. (U.S. Department of the Interior) Both of their last names are on the bell after doing the new cast on the bell. (Liberty Bell Facts)
Burk Edwards Mr. Kriner Us History 19 October 2017 Ellis Island Intro Located in the upper New York Bay was the border or gateway for immigrants to come to the United States, in total over 12 million immigrants used Ellis island to get to the United States. Ellis Island has been used as an immigration inspection center for over 60 years. The process they used to get immigrants into the United States was asking basic questions like money, name and occupation. There was also a medical procedure to get by Ellis Island, Ellis Island closed its immigration process in 1954.
This element when becoming an isotope can become radioactive due to its high activity as a metal. In its natural state it is a soft metal and it has a shiny “ wax “ like silver/white color to it, it is so soft that a knife could cut through it without a problem.
Women in the Gilded Age were responsible to be prepared for any event. They needed to make sure that upon entering the event, they had the appropriate attire. Women had to strictly follow rules for evening dress, ball dress, full dinner dress, with a slightly different standard for the hostess of the dinner, dresses for receiving calls, carriage dresses, visiting dresses, dresses for morning calls, morning street dresses, promenade dresses, the opera dress, the riding dress, a walking suit, an occupational dress, an ordinary evening dress, with variations on dresses for social parties, church, croquet, archery and skating, traveling, the wedding dress, and finally dresses for periods of mourning.
The U.S. Treasury frequently changes bills to prevent counterfeit and we may be seeing a new face on the $20 bill. The previous person on the $20 bill, Andrew Jackson, will be replaced with the American icon and abolitionist Harriet Tubman in about 2030, but this change has sparked a debate on whether Andrew Jackson or Harriet Tubman should be on the $20 bill. Harriet Tubman should be the next face on the $20 bill because she was a very important person in American history and it is time to have a woman on a bill and Harriet Tubman is a perfect match.
I provided a link to access my artifact, a picture of Harriet Tubman. The artifact (picture) was on an invitation to honor Dr. Charles L. Blockson who was was a writer, historian and was once a member of the Historical Society of Pennsylvania for his donations which were authentic pictures of Harriet Tubman. Now considered artifacts in the Smithsonian National Museum of African American History and Culture and the maker of the invitation was Chairman Robert A. Brandy of the Committee on House Administration. These artifacts are in a museum that is open to the public. Tubman is amousnt many one of the most fearless women due to her escaping slavery in the 1800's and her leadership when she lead more than 700 African Americans out of the Underground
...rate the alliance between the two during the Revolutionary War in 1886. Its now a National Monument where people can tour and visit. It is known as a worldwide symbol of freedom and democracy. It represents hope and an opportunity for those looking for a better life in America. Lady Liberty was designed based off of the Roman goddess Libertas—who also represents freedom from tyranny and oppressed. Lady Liberty has a broken chain at the bottom of her feet that is not very well seen. This symbolizes continually moving on and forever bringing freedom to others.
Harriet Tubman was born in 1820, in Maryland. She had been through a lot in her life. During her early years as a child in slavery, she suffered more than an average person in their entire lifetime. As an adult, she risked her life almost every day to save others and after she died, she has received many awards, including her beating Andrew Jackson to be the face of the $20 bill. Her time in slavery gave her the determination and inspiration to be one of the conductors on the Underground Railroad and being a famed abolitionist, not to mention her recognition and tales told about her after she died. But what led Harriet Tubman to be such an influential figure in US history?
Mr. Cronstedt discovered nickel in a mineral called niccolite. He originally planned to extract copper from this new mineral but got none at all. This is why nickel, at first, was called "false copper". Instead, Cronstedt got a silvery-white metal, which was eventually used for other things.
Zinc oxide, a white, powdery covering that forms when zinc is exposed to oxygen, is used in a wide variety of products, from cosmetics and soaps to rubbers and plastics. Zinc oxide is also extracted from some compounds and heated in order to revert it back into pure zinc (Davis, 2016). Zinc phosphate is another compound, often used in paints as a pigment. However, it’s use in the paint also creates protection for metals against rust (Danker, 2016). Zinc chloride, when mixed with water, can also help to protect wood from decay and insects (Davis, 2016). Brass, a mixture of zinc and copper, is also used very frequently in modern projects. Brass is made by melting copper in a furnace and adding solid chunks of zinc, which rapidly melts into the copper. A layer of charcoal is often placed over the mixture to reduce the loss of zinc through vaporization. Brass’s uses range from hardware and electrical fixtures to musical instruments and jewelry. It’s first extensive use, however, was by Romans almost two-thousand years ago, who used brass for ornaments, coins, and kettles (Melford,
Some coating procedures may have begun in early times. Modern electroplating did not start until the early 1800’s. After the invention of the battery at this time period, large amounts of current electricity became available. It also could deposit lead, copper, and silver. With the discovery of cyanide solution, deposits of gold, silver, copper and brass could be directly deposited on steel or iron. This increased the commercial use of electroplating. The electroplating industry has grown and has developed many requirements in the electroplating process. Some commonly used metals today are iron, brass, silver, copper, cobalt, zinc, gold, lead, and chromium. Chromium is a very useful metal in this industry. Chromium is very bright and stays this way for a very long time. Automobiles are the main items electroplated with this metal. That is what keeps a car bright.
Corrosion may be defined as the deterioration of a material due to a reaction with the environment around it. Metals corrode because we use them in environments that are chemically unstable. Very few metal are found in nature in their metallic state such as copper, gold and silver . All other metals are processed from minerals or ores into metals which are innately unstable in their environments. These unstable metals have a tendency to revert to their more stable mineral forms. Some metals form protective ceramic films (passive films) on their surfaces and these prevent, or slow down, their corrosion process. We can prevent corrosion by using metals that form naturally protective passive films, but these alloys are usually expensive, so we have developed other means of corrosion control. That are discussed later in this paper.