Posted on Mar 13, 2022 228
Such a metal as copper, and used to be of great importance to humanity. Not without reason. The whole era was called the Copper Age - then this metal was used to make weapons, armor, tools, jewelry, dishes and more. But even today, the importance of copper cannot be overestimated, as it is used in a variety of industries, from the space industry and mechanical engineering to the production of all kinds of electronics and a lot of paints.
- About 80% of all copper products are recycled and reused, as this metal is too expensive to simply throw away after use.
- On the island of Cyprus, people have been mining and processing copper for over 4,000 years.
- Of all the metals in the world, copper ranks third in the world in both production and consumption, behind only aluminum and iron in these categories.
- The purest copper is used to make wire and electrical cables. Here, purification is really required as deep as possible, as any impurities decimate the electrical conductivity.
- At copper deposits, this metal is often found as pure nuggets, although it is sometimes found with extraneous impurities.
- Copper is a natural antibacterial agent, and “inhibits” the spread of bacteria in the water and air from systems made of it. In the same way, brass door handles and handrails in public buildings can help minimize the risk of bacterial transmission because copper is part of the brass alloy.
- Among all metals, copper is second only to silver in terms of electrical conductivity. But silver is too expensive to use for most wires and other electronics.
- Because of its high thermal conductivity, copper has become an indispensable part of many cooling systems.
- Because copper is highly resistant to corrosion, it is commonly used to make capsules for the disposal of toxic waste.
- Archaeologists found copper pipes in ruins in Egypt that were around 5,000 years old. Over the past millennia, these pipes, made by ancient Egyptians, have not even lost their function.
- Copper itself is safe, but mining it is not. The world’s most toxic lake, called Berkeley Pit in the United States, for example, was formed when water flooded a former copper mine.
- Blood in mammals is red because of the iron in it. And some other animals, such as octopuses, have blue blood, because instead of iron it contains exactly copper.
- In our body, however, this metal is also present. Most of it is found in our liver.
- Copper is necessary for normal functioning of the human body, and we get it with food. The average adult needs just under 1 milligram per day.
- If you hit one copper tool against another, there will still be no sparks, no matter how hard you try. Iron is better suited to strike a spark.
- Copper is added to many jewelry alloys, such as gold. This is to increase the strength of the piece and reduce the consumption of the gold itself. Often, nickel is also added to the alloy.
- Copper age, which lasted for over 1000 years, ended when people learned how to get bronze by alloying copper and tin nuggets.
- It was copper because of its softness and ease of processing that became the first metal that was used en masse by humanity.
- Many nations attributed healing properties to copper. In particular, this metal is especially revered in Nepal.
- The average adult body contains about 60-80 mg of copper.