metallic oxide studied up to now and would ruin the superconductivity. The hope is that copper will not react with the vanadium oxide and that the possibility of practical application of superconductive materials will come that much closer.To change the subject slightly-the late great rocket engineer, Willy Ley, wrote a book about 35 years ago entitled "Engineer's Dreams." In it, he described ...
copper and iron, but newer metals discovered only in modern times. Nickel, cobalt, tungsten, manganese, chromium, vanadium, niobium and so on, all had their valuable uses.High concentrations of the necessary ores were dug up and smelted. The metals were then used and, eventually, discarded as scrap. The highest concentrations were used up and metallurgists learned to used poorer ...