For our science assessment we had the task to research about a metal of our choice. Since I am really into computers, I chose copper. A metal used in all kinds of wires, cpu’s and other stuff without a computer wouldn’t work. This fits really well into what we have to do for the second part, describe how this metal has helped human society.
Coatings and primers are similar to paint and work to prevent cracking, chipping and peeling of metals. The three most common forms of coatings are barrier coatings, sacrificial coatings and _________. A sacrificial coating commonly used on marine structures is the zinc based primer, also known as the process of ‘hot dip galvanization’. Galvanization is the process in which a metal, being steel in this scenario, is coated with a thin layer of molten zinc.
With better places to live and extra food available, people with extra time on their hands stared experimenting with metal. They gathered up some food, cut up some wool from there domesticated animals, and traveled around Europe to sell people their produce. These farmers provide the food for the specialists that created so many great technologies. One of the most important was steel. Steel is almost all European. It was made possible by early specialists that experimented with fire and minerals. These experiments, ironically, were conducted in the Fertile Crescent. Since the Fertile Crescent had a pretty dry climate, fire pits could be lit long enough to transform limestone into plaster. Then this strategy was applied to copper, iron, and eventually steel. It didn’t just require the right conditions though; these specialists needed the right materials. Once again, Europe struck lucky and had all the right materials for the job. When Europeans started mastering the art of making steel, they created armor and swords. The Americas didn’t have a powerful technology like steel, but they did have things of more value like copper and gold. These valuable resources were the Spanish Conquistador’s main motivation to conquer the Americas. Since gold was so common to the land of the Incas, it was of no value to the Inca Empire. Since these Indians were only protected by lower quality armor and weapons, the Inca Empire, along with their
There are 3 types of metals for electricity conducting: metallic conductor, semiconductor, and superconductor. Metallic conductors allow the free flow of ions and electrons through a sample; and its conductivity decreases as the temperature increases.
Copper (Chemical symbol Cu, Atomic number 29), is one of the best electrical conductors in all metals, has influenced the use of telecommunications throughout the world. We rely on copper for a lot of things - power, heating, lighting, transport, communication, and even coinage. The wide application of copper in our daily lives has made our homes, schools and businesses pleasant, decorative and efficient but also has created negative impacts in our environment.
We use about 5.8 billion pounds of copper each year. We use copper for our money here in the United States. The copper is used in our pennies. Just in pennies we make about 13 billion pennies a year. All of that is copper. A penny weighs about 0.088 ounces. Another thing that we use copper for is electricity. Copper is a great conductor of electricity. Copper is able to take heat very well when running electricity because the conduct electrons. Copper is malleable and ductile. Since it is very ductile it allows us make wiring out of it. It is very well good at conducting heat so you will see it a lot in motor vehicle radiators and home heater systems. It is also used in air-conditioning. Copper is not really corrosive so that is why people will see it in pipes, water pipes. The only problem with the pipes made out of copper is that copper will bend and break really easy. Some copper is used in gun designs. They were also used for making swords and shields. Very few were made out of helmets but it was still used for that way back when. Also copper was well known for killing bacteria. So in the past they used it to treat wounds for patients because it could kill the bacteria. It was also used on the sides of ships to protect it from algae and other bacteria that may have harmed the boat. Copper has been used for a long time. It dates back to about ten thousand years
Most of the metals in Periodic Table have high malleability. This also includes iron, aluminium and copper. By the term ‘malleable’, people mean, that the material can be easily shaped, reformed, stretched or other most physical changes, without breaking itself. Aluminium would be the highest malleable metal out of these three, as people created aluminium foils, which do not break under normal circumstances (only if someone would rip it). The second most malleable metal would be copper, because people created wires, which are larger in width than aluminium foil. Last, out of these 3 is the iron. With iron people can create small pieces that would not break, but they would still be larger compared to the metals above.
Metal roofing may be ideal for your home because of how infrequently it needs to be replaced, as well how effective it can be as a roofing material. Here are some differences between copper and galvanized steal that will help you see how galvanized steel is the better choice.
Now that it's fall, it's only a matter of time until the weather really starts to turn. Before the winds pick up and the rain and snow fall, you should take this opportunity to focus on some major home improvement projects. The temperatures and conditions of autumn make it an ideal time to work outside, especially in regards to roofing. If you've had to make significant repairs to your current roof over the years, you may want to consider replacing it with a new metal roof. According to Drummond Construction in Elkins, AR, metal roofing has a number of advantages over other options.
Metal seems to be fragile, but after gluing and screwing the drywall, it becomes strong and rigid. Addition of structural support is possible when wood studs are being used, meaning metal studs do much better when used for non-load-bearing walls.