Copper impurities remained after smelting removed by melting and electrolysis. Tank room of electrolytic refinery plant at Baltimore. The anodes placed in empty tank. Thin sheets of pure copper, serving as cathodes inserted between the anodes. The tank then filled with a dilute solution of copper sulphate. An electric current flows from the anode, through the solution, to the cathode on which pure copper is deposited. After removing the cathodes from remnants of anodes a sludge, into which the gold, silver and platinum has fallen, flushed out of the tank. Sludge melted by a worker into a bullion bar. The copper cathodes melted.
Pure copper caste in commercial shapes. Copper bars dumped from mold into cooling tank. Workers inspect the wire-bars. Various commercial shapes caste to meet particular requirements of copper fabrication.
A television program 'Longines Chronoscope' shows Minton Rosen, Head of Rocket Development for Naval Research Laboratories, interviewed by Larry Lesueur and Lou Cioff. Minton Rosen speaks that they want to carry out exploration with equipment rather than a human being in outer space. Further he talks about moon exploration. He explains the difference between guided missile and a rocket missile.
A television program 'Longines Chronoscope' shows Minton Rosen, Head of Rocket Development for Naval Research Laboratories, interviewed by Larry Lesueur and Lou Cioff. Minton Rosen speaks about rockets, satellites and transporting men up in space.
A television program 'Longines Chronoscope' shows Minton Rosen, Head of Rocket Development for Naval Research Laboratories, interviewed by Larry Lesueur and Lou Cioff. Minton Rosen speaks about the difference between research rocket and rockets used as weapons for military purposes. Further he talks about the problems faced in reaching moon and purpose to explore moon. He also speaks about UFO flying saucers and says that without any tangible proof existence of flying saucers is unacceptable.
Sponsors advertisement for Longines watches shows host, Frank Knight speaks about Longines watches. He speaks that Longines watches are not very expensive. Variety of Longines watches. Emblem of Longines watches.
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