John C. H. Spence, "Lightspeed: The Ghostly Aether and the Race to Measure the Speed of Light" English | 2019 | pages: 253 | ISBN: 0198841965 | PDF | 13,6 mb
Lightspeed : The Ghostly Aether and the Race to Measure the Speed of Light by John C. H. Spence English | 2020 | ISBN: 0198841965 | 253 Pages | PDF | 13.7 MB