| Description | Four diagrams, labelled figures 1-4, showing a circuit used by Ewing in his investigations into the production of transient electric currents in iron and steel conductors by twisting them when magnetised, or by magnetising them when twisted, and three graphs of his results. Figure 1 is repeated on parchment paper with the caption 'Corrected version of figure 1'.
Subject: Electromagnetism
Prints of these diagrams were published in volume 36 of the Proceedings of the Royal Society alongside the paper 'On the production of transient electric currents in iron and steel conductors by twisting them when magnetised, or by magnetising them when twisted'. |