For a decade and a half GPS Common-View time transfer has greatly sewed the needs of primary timing laboratories for regular intercomparisons of remote atomic clocks. However, GPS as a oneway technique has natural limits and may not meet all chulollenges of the comparison of the coming new generations of atomic clocks. no-Way Satellite Time and Frequency nansfer (WSTFT) is a promising technique which may successfiUy complement GPS. For two years, regular WSTFT's have been performed between eighf laboratories situated in both Europe and North America, using INTELSAT satellites. This has enabled an extensive direct comparison to be mcrde behveen these two high performance time-transfer methods. The performance of the TWSTFT and GPS Common-View methods are compared over a number of time-transfer links. These links use a variety oftime-transfer hardware and atomic clocks and have baselines of substantially different lengths. The relative merits of the two time-transfer systems are discussed.

A constant current interrupter technique was employed in the experimental determination of anode potentials during high rate anodic dissolution of copper. The influence of ohmic voltage drops in the solution on measured overvoltage have been compensated by electronic means. For short electrolysis times, dissolution proceeds in the active mode; in sulfuric acid, Tafel behavior was observed up to the highest , 2 current densities employed (100 AI cm). Passivation effects may lead to significantly higher anodic potentials.