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During those two days he learned many other things, to be sure: that Aten for instance, was relieved from duty at the machines only because he was wounded; that the power of the main machines came from a deep bore which brought up superheated steam from the source of boiling springs long since built over; that iron was a rare metal, and consequently there was no dynamo in the city and magnetism was practically an unknown force; that electrokinetics was a laboratory puzzle or had been, when there was leisure for research while the science of electrostatics had progressed far past its state on Earth.
The paper was followed by others on the mathematical theory of electricity; and in 1845 he gave the first mathematical development of Faraday's notion, that electric induction takes place through an intervening medium, or 'dielectric, and not by some incomprehensible 'action at a distance. He also devised an hypothesis of electrical images, which became a powerful agent in solving problems of electrostatics, or the science which deals with the forces of electricity at rest.
I am learning a great deal of electrostatics in consequence of the perpetual cross-examination to which I am subjected. I long for you on many grounds, but one is that I may not be obliged to deliver a running lecture on abstract points of science, subject to cross-examination by two acute students.
'JAN. 17TH. I am learning a great deal of electrostatics in consequence of the perpetual cross-examination to which I am subjected. I long for you on many grounds, but one is that I may not be obliged to deliver a running lecture on abstract points of science, subject to cross- examination by two acute students.
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