Word: coppers
(lookup in dictionary)
(lookup stats)
Dates: during 1960-1969
Sort By: most recent first
(reverse)
...Copper Blue Blood. While Professor Ernst Bayer of Tubingen University was still a graduate student, he began to study the ability of marine animals to concentrate some of the rare metals found in sea water. The sea squirt, Phallusia mamillata, for example, has 1,000,000 times more vanadium in its blood than the water it lives in; the deep blue blood of the octopus has 100,000 times as much copper. If sea squirts and octopuses can do the trick, asked Bayer, why shouldn't human chemists...
From octopus blood he extracted hemocyanin, a protein that picks up copper because its molecule has a structure that a copper ion fits into neatly, like a key into a lock. But proteins are hard to handle and almost impossible to synthesize, so Bayer looked for simpler compounds that would do the same job. After many tries, he put together a black granular material that picks up copper and uranium only. When this "chelating agent" worked well in the laboratory with simulated sea water, Bayer took it to Naples, put it in a glass column and ran 100 liters...
Gentle Handling. Magneform is already doing many useful jobs: aluminum and copper are being joined to porcelain insulators for outdoor wiring; the metal bands around artillery shells are being fitted quickly without any fuss. The auto industry is using Magneform to produce ball-joint and seal assemblies for front suspensions. Magne-form's principal advantage over welding, pressing or stamping is its ability to shape metals without the rough handling that such operations ordinarily require. Automated assembly-line operation can be managed easily, and Magneform men are already looking toward the day when most subsidiary parts of an auto...
...that are not obscured by excessive ornamentation, with as much easy stylization and graceful gesture as the sculpted saints of the contemporary Gothic in Europe. Avalokiteshvara has one advantage to delight a sculptor: he comes in 108 different incarnations. Nepalese sculptors were equally adept at hammering out fully rounded copper-gilt figures from inside. Fond of rich materials, they cast sinuous sculpture in bronze, then fire-gilded it to an eternal luster...
...Hodgepodge. The confrontations among other materials are just as sharp and furious. Long-lasting and easy-to-install copper tubing had just won a victory over galvanized pipe for plumbing when along came cheaper plastic piping. Steel has joined battle with wood over the load-bearing structural parts of the home. Wood and aluminum are wrestling for the right to be in window frames; steel and aluminum are fighting over outside door frames and sills. Gypsum board for interior walls has proved cheaper and faster to install than wet plaster, but it now has challengers in plywood finished...