Copper

made made tools including saws, axes, wooden mallets, and much more. Jewelry makers made thick necklaces, bracelets, earrings, and many other pieces of jewelry. The rich people had gold jewelry. The people with less money had theirs made of copper. The copper jewelry would have colored glazes. The scribes were the few people in ancient Egypt who could read and write. It was a really hard job because there were hundreds of different hieroglyphs to remember. A scribe would write about the daily…

Chile is an export driven economy, meaning that their exports compose a very significant portion of their economy and any potential internal growth. To really understand why today we see Chile as an export driven economy let’s start by taking a look at the history of how Chile was able to increase their GDP with trading. In the 17th century Chile had a husbandry and agriculture based economy with ore-rich districts like Potosi and other wealthy cities like Lima. Those Husbandry products which…

First, a little background on myself so you’ll know that you can trust my opinion! I’ve been an animal lover my entire life, a veterinary technician for 6 1/2 years, I ran a dog rescue for 3 years and I currently own four dogs of my own. Like most pet owners, I want to make sure that I do whatever I can to keep my pets healthy and happy for as long as possible. I am passionate about nutrition and have done a lot of research on the different products available for my dogs. I just recently…

18 gauge copper audio cable and 1 1/2” segments of braded fishing line. The amounts were not calculated be merely added based on the availability of each material. A total of 71.5g of copper wire and 8.7g fishing line…

bundles called optical cables and are used to transmit digital information over long distances. Fibre optics can be used for telecommunication, networking, decorations, endoscopy and much more because they are flexible, carry much more information than copper wires, can be used quickly by computers, the digital hardware is much smaller and it is easier to send information over long distances. Fibre Optic wires work by transmitting light signals through the core of the wire using total internal…

The objective: Through a scientific invention the student will create a model that transmits electrical current and demonstrate that electricity travels in a closed path. Materials: (6) light bulb, (6) battery, (6) 6 in. insolated copper wires, (6) wire stripper, (6) switches, (21) safety goggles, (21) aprons, and boxes of gloves. Vocabulary: Circuit, closed circuit, open circuit, electrical circuit, electromagnetic, and parallel circuit Engaged: We are going to do a KWL chart to find out, what…

Over the course of history, a number of items have impacted society. The economical development and growth of society has been influenced by several things. Agriculture and trade has had a tremendous impact on the economic development and growth of society. One such area that has been impacted is that of Mesopotamia, which is Greek for land between rivers. This is now modern day Iraq. The civilizations that make up the Mesopotamia are the Upbraid, Sumerian, Babylonian, and Assyrian and…

It is possible to create diamonds with carbon and by applying extreme heat and pressure. Diamonds are measured in carats; one carat is two-hundred milligrams. Diamonds are better conductors then any other metal in the world, four times better than copper. Time, money, and extreme heat and pressure are important parts of the presses in creating a diamond. II. A. To create a diamond, you would first have to find carbon from deep inside the earth. Then heat it to about 2,500 degrees Fahrenheit,…

My peers, currency is one of the cornerstones of modern society, but I ask why has the penny remained for hundreds of years while several other coins the United States has minted disappeared? Why must we continue to produce coins which are worth less than nothing? Why did the penny not die out in 2006? Why do we make coins that simply aren’t worth someone’s time and money? The penny wasn’t always the smallest unit of currency that the United States used, there existed a coin known as the…

naphthalenes: Brown dyes of this type include C.I. Sulfur Brown 7,15,16,31,63. Sulfur Brown 15 is obtained by Obtained by baking a mixture of 138 parts of 1,5-dinitronaphthalene and 75 parts of crude cresol with sodium polysulfide, in the presence of copper sulfate and sodium chloride at 265⁰C for 12-14 hours. The 1,5-dinitronaphthelene may be reduced at 95⁰C with sodium polysulfide before baking. Dyes from…