May. '07 Copper-based Solar Cells: Good for the Environment, Good for the Consumer Copper has long been used in solar heating/hot water systems, where it is commonly used in heat exchangers. Now, it promises to become equally valuable in photovoltaic (PV) systems. These systems produce electricity through the action of sunshine on certain semiconductors, including so-called thin-film materials and the currently most promising material: copper indium gallium diselenide or CIGS.
Apr. '07 The Presidential Dollars Golden Collectibles or the Next Coin of the Realm? The U.S. Mint is betting it's got it right this time. The Mint placed into circulation the first of its new golden dollar coins featuring, for the initial issue, George Washington.
Jul. '06 Copper Makes Beer Better: Control of Hydrogen Sulfide in Beer with a Copper Electrolysis System Hydrogen Sulfide (H
2S), a volatile sulfur compound, is a normal byproduct of the fermenting process. But, research has shown that people are very sensitive to the odor of H
2S and can detect this odor as an off-flavor at very low concentrations. Researchers have found that the most effective means to control H
2S is by using copper which removes the H
2S as copper sulfide (CuS) which can then be removed from the final product.
Jan. '02 The New Economy The transition from an industrial to an information-based economy could increase our reliance on copper.
Nov. '99 High Tech House Runs on Copper How new solar cells based on a complex alloy of copper, indium, selenium, gallium and sulfur allow high-tech house to run even during local power failure.
Nov. '99 Copper - Keeping Up Appearances Bronze has been used as a sculptors' medium since the 1500s. A look at patination, especially on outdoor sculpture, including waxes, patinas and cleaning options. The EU's "Environmental Protection and Conservation of European Cultural Heritage" has developed a successful product, OROCOMER.
Sep. '99 Copper Racing to Success New formulation using a few parts per million of copper in sunflower oil proving to be as good as the best formulated mineral engine oils. Review of chemical makeup of different types of oils, pros and cons of new compound.
Sep. '99 Copper Patents A report on 10 of the copper-related Patent Briefs submitted for 1998.
Jun. '99 Copper: The Durable Metal Look at home and industrial uses for copper based on its durability, recycleability and other properties.
Jun. '99 Copper Increases Efficiency of Solar Cells Siemens Solar Group is testing the capabilities of a new thin-film photovoltaic module created by applying a fine film of copper indium diselenide (CIS) to a glass backing to product a less expensive semi-conductor.
Mar. '99 Power Quality and Your Computer Power requirements of "sensitive electronic equipment" and how copper wiring can help ensure consistent electric power quality.
Mar. '99 Property Data on The Copper Page A new Web site will make available an expanded version of the data in the Copper Development Association's (CDA) Standards Handbook series.
Nov. '98 The Metal of Civilization Standards B115 and B49 A look at two of the American Society for Testing and Materials' (ASTM) technical committees' choices for their most significant standards; B115, which is accepted worldwide as the ultimate standard for the production and commercial trading of copper; and B49, the Standard Specification for Copper Redraw Rod for Electrical Purposes, which was first developed in 1923.
Sep. '98 Dollar Coin - Design and Materials The second US Mint's stakeholders' meeting was held on Wednesday, August 12, 1998 in Washington D.C. to brief the Coin Coalition (a group which promotes the introduction of a new dollar coin) and other interested parties on the technical aspects of the new dollar coin including the alloy design.
Jun. '98 Overview of Recycled Copper Walk through process of recycling copper, which accounts for almost half of all copper produced and sold in America every year.
May. '98 The Secret to Staying Young Utah's Bingham Canyon, an open pit mine goes from boom (1980) to bust (1982) and back to boom (today) through investment in new technology.
Apr. '98 Home Automation Comes of Age: The Future Has Finally Arrived! Faster computers, more bandwidth and other innovations in the PC are leading to the advent of the truly automatic home. Today's version typically supports interactive voice, data, video, and multimedia, with access to high-performance cabling and interconnection to telephone, cable TV, digital satellite, cellular telephone, and utility telemetry services.
Mar. '98 The Butte Copper Mines Brief history of Montana's copper mines, which began as gold and silver mines.
Mar. '98 Paul Revere - Copper Industry Pioneer A look at the copper-related achievements of Paul Revere, including production of the first rolled copper sheets in the US, production of the first cast bell in Boston, and being a major supplier of copper for the US Navy fleet which included nails, bolts, spikes and sheathing.