Samuel Tolver Preston was an English engineer and physicist. His parents were Daniel Bloom Preston and Mary Susannah Tolver. Preston was educated as a Telegraph-engineer. He went to Munich where he attained his Ph.D in 1894 with Ludwig Boltzmann. After that, he worked as a teacher. He is known for his works on the kinetic theory of gases and his attempts to combine this theory with Le Sage's theory of gravitation. In his book Physics of the Ether 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 to1000 million foot-tons. However, Preston's thoughts were entirely based on classical, non-relativistic physics and cannot be compared with Albert Einstein'smass–energy equivalence, which is a consequence of special relativity. Preston also seemed to be the first 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". 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.
On the Possibility of Accounting for the Continuance of Recurring Changes in the Universe, consistently with the Tendency to Temperature-Equilibrium; Philosophical Magazine 8, 1879, p. 152/163.
On the possibility of explaining the continuance of life in the Universe Consistent with the Tendency to Temperature-equilibrium; Nature 19, 1879, p. 460/462
On Method in Causal Research; in: Philosophical magazine, ix, S. 356–367
A Question regarding one of the Physical Premises upon which the Finality of Universal Change is based; Philosophical Magazine 10, 1880, p. 338/342.
Science and sectarian religion; in: S. T. Preston, Original essays; London, 1884, S. 19–51.
Ueber das gegenseitige Verhältniss einiger zur dynamischen Erklärung der Gravitation aufgestellten Hypothesen; Inauguraldissertation von 1894, München, Phil. Fak.
'; Philosophical Magazine 1895, Vol. 35, p. 145ff.
On Certain Questions connected with Astronomical Physics; Philosophical Magazine 1906, Vol. 12, p. 560ff.
On Certain Questions connected with Astronomical Physics, Part II; Philosophical Magazine 1907, Vol. 14, p. 265ff.
On some Physical Relations affecting Matter in Diverse Stages of Subdivision; Philosophical Magazine 1908, Vol. 16, p. 345ff.