Scale reads 0 to 50 but numbers are reversed - these will read correctly when viewed thru the spotting telescope used with this galvanometer (328111). Unit has clip marks in center where it was held ...

ON account of the correspondence which has recently taken place in this and other journals regarding the use of the tangent scale in a galvanometer, when the plane of the coil makes an angle with the ...

The following observations may be of interest in connexion with the demonstration of a short-period galvanometer by Attree, Downing and myself at the recent Physical Society Exhibition. The extent of ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...