Re: Copper prices
in response to
by
posted on
Aug 12, 2008 02:59PM
Focused on the Exploration and Development through Partnership of its portfolio of Porphyry Copper Targets
Copper can only go up, going by the trending of the price over the last few yeras, and that's before China's GDP went through the roof of double figures last few years!
Copper has so much more uses vs gold it's ridiculous!
Computers:
Copper is vital for computers to work. Copper is used in building the integrated circuits, chips, and the printed circuit boards of the computer alone. Copper is becoming more and more popular to use in the layers of the build-up of a chip. IBM announced a plan to use copper in its computer chip rather than aluminum. Doing so would make the computer to be cheaper and would allow it to make faster calculations.
Electricity:
Copper is often used as a conductor of electricity. Almost all electrical devices rely on copper wiring because copper is inexpensive and highly conductive. The conductivity of copper is second only to silver. The reason why copper is a good conductor is because there are a lot of free electrons that can carry the flowing current efficiently. These free electrons do not remain permanently associated with the copper atoms, instead they form an electron ‘cloud’ around the outside of the atom and are free to move through the solid quickly.
Currency:
Copper is often used in currency. From 1909 to 1982, the American penny was 95% copper. The other 5% was either zinc or bronze depending on the year. The only exception was 1943. That year the penny had zinc-plated steel in it. Unfortunately, the steel was magnetic and kept getting stuck in vending machines. Also, the zinc corroded easily and was therefore often mistaken for a dime. In the early 1980’s copper increased in value. So in 1982, the United States switched the penny’s core to zinc and coated it with copper.
Health:
Two radioactive isotopes of copper, copper-64 and copper-67, are used in medicine. The first, copper-64, is used to study brain function and to detect Wilson’s disease. Wilson’s disease occurs when a person cannot eliminate copper from his or her body. Copper-67 treats cancer. When the isotope is injected into the body it goes to cells that are cancerous and gives off radiation that can kill the cancerous cells.
Copper Landmarks
Here in North America, our copper landmarks are a little younger, but no less impressive. Copper can be found atop city skyscrapers, halls of government, universities and other institutions across the land. Historic Christ Church in Philadelphia is the oldest-known copper-roofed church in America, dating back to 1727. However, the most enduring copper icon in U.S. history is the Statue of Liberty in New York Harbor, sculpted in 1884 from over 160,000 pounds of the semi-precious metal.
Rooftops Redux
In recent years, a new market has taken a shine to the glittering metal that when combined with iron and sulfur once fooled prospectors into thinking it was gold. Influenced by the development and availability of new, lightweight copper roofing shingles, more homeowners are choosing copper roofs for reasons both aesthetic and practical.
Various estimates put the lifespan of a copper roof at more than
100 years, while asphalt shingles — the most commonly used roofing material in America — are said to last 15–30 years, on average. This makes copper one of the most cost-effective roofing materials on the market. The reason for its longevity is the natural patina that develops with age and serves as a protective shell when copper is exposed to the elements.
Putting the Green into Green Building
Copper is both literally and figuratively a green building material. Besides its green patina, the metal is environmentally friendly, boasting one of the highest recycling rates of any engineering metal. And, copper shingles will never be discarded or wind up in a landfill. Instead, because of their value, they can be salvaged and recycled.
Other key attributes of the premium metal are its fire resistance and ability to withstand the extremes that Mother Nature can dish out — like high winds, heavy snowfall and excessive temperatures.
Paradigm Shingles, Inc., of Vermont, which manufactures and distributes the “Bennington” copper shingle, cites the metal’s remarkable longevity as a key selling point, along with its natural beauty and ease-of-installation.
Taking a Shine to Copper
Homeowners turn to copper to add refinement and a sense of luxury to their homes, says David L. Hunt, manager of architectural services at Revere Copper Products, Inc., which developed its first copper shingle over 50 years ago for the commercial market. Copper roofing shingles are particularly popular in vacation spots like Colorado’s “ski country,” and Jackson Hole, Wyoming, he says.
Kent Schwickert, president of Schwickert Inc. in Mankato, Minnesota, an architectural sheet metal fabrication and roofing company, agrees. He attributes the increased interest in copper shingles to a “desire for uniqueness” among affluent homeowners.
Consumers are “going outside the box” to find quality products for their homes, says Schwickert, whose company recently entered the residential roofing market. For these people, a roof is “more than something to protect them, it provides an aesthetic value to their home.”
According to the Copper Development Association, there are at least a dozen manufacturers supplying copper shingles to contractors across the continent. A partial listing can be found at the association’s Web site at www.copper.org under architecture (new products).