The Electrochemistry of the First Layers of Electrodeposited Metals

Abstract

The electrolytic deposition of the first few atomic layers of a number of metals on gold and silver has been studied by the method of charging curves. Preliminary results have indicated the value of the method for studying the first stages of electrodeposition; in particular, the variations in the nature of the binding of the first atomic layers to the underlying metal have been found.

An Interferometer for the Measurement of Radio Source Sizes

“…The other aerials consist of (a) portion of the existing north-south arm of the cross 300 ft in length centred 30)" south of the centre of the east-west array and (b) a new array identical with (a) and situated 10 km distant in an east-west direction. The signal from aerial (b) is transmitted to the central site by means of a radio link similar to that used in an earlier investigation (Mills 1953).…”

“…Mills 1953) that the relative visibility of a circularly symmetric distribution B(r), is given by A/!= f: 1(6) cos (27tn6) (3) where All is the relative visibility at a spacing of n wavelengths.…”

“…It was shown that the five sources measured, Oassiopea A and Oygnus A in England and Oygnus A, Taurus A, Virgo A, and Oentaurus A in Australia, all had angular sizes of the order of a minute to several minutes of arc, consistent with the identifications which had been made with visible nebulae. These initial measurements were extended and improved (Smith 1952b;Mills 1953;Jennison and Das Gupta 1956) and for several years represented the only results available on the small discrete sources. Subsequent measurements extended the number of known sizes to a couple of dozen, all in the range l' arc or greater (Oarter, personal communication; Edge et al 1959) and, more important, showed that a few sources appeared to have sizes less than 12" arc (Morris, Palmer, and Thompson 1957).…”

Radio Galaxies

“…Именно так поступил Миллс в 1953 г. 19 . О результатах его наблюдений будет сказано в следующем параграфе.…”

“…Грубое радиоизображение источника Дева-Α впервые получил Миллс на волне 3 м интерференционным методом 19 (см. § 1).…”