SUFFIELD EXPERIMENTAL STATION RALSTON (ALBERTA)
Pagination or Media Count:
A half-silvered mirror tangentometer similar to that of Hayman et al J. Sci. Instr. 34307 1957 is described. It is for attachment to a standard drafting machine, obviating the need for an accurately divided scale since that of the drafting machine is used. Furthermore, no alignment with the principal axes of the graph is required, since alignment is attained by the initial setting-up of the graph on the table and is automatically maintained by the drafting machine. The device permits the reflection of one half of a curve to be compared with the other half as seen through the half-silvered mirror.