Education
Preston was educated as a Telegraph-engineer
Preston was educated as a Telegraph-engineer
After that, he worked as a teacher. In his book Physics of the Ether (1875) he claimed that if matter is subdivided into ether particles, they would travel at the speed of light and represent an enormous amount of energy. In this way, one grain of matter would contain energy equal to 1000 millions of foot-tons (whereby one foot-ton = 2240 foot pounds).
However, Preston"s thoughts were entirely based on classical, non-relativistic physics and cannot be compared with Albert Einstein"s mass–energy equivalence, which is a consequence of special relativity.
Preston also seemed to be the first (1885) to recognize the redundancy of Michael Faraday"s explanation of electromagnetic induction. Einstein recognized a similar problem in his paper "On the electrodynamics of moving bodies" (1905, ie special relativity).
In 1876 he corresponded with James Clerk Maxwell and alluded to the work of John James Waterston. In 1880 he corresponded with Charles Robert Darwin.