ATTENTION has recently been drawn more than once (notably by Sir William Thomson, and by Mr. W. H. Preece and Mr. Kemp) to the advantages offered, in certain cases of the use of the ...

A chance "eureka moment" by a Scottish physicist solved a problem that had plagued the transatlantic cable -- and made a lord out of the man who had the insight. One of the fundamental problems of ...

IN 19311 1 described the use of a differential photoelectric cell connected to a ‘secondary’ galvanometer for amplifying the movements of a ‘primary’ one. The only suitable cell available then was a ...

The film explores the concept of electricity, demonstrating how it can be generated through simple experiments such as rubbing different materials together. It explains the basics of electric currents ...