2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/230905Three small lectures are devoted to three Newton's laws, lying in the foundation of classical mechanics. These laws are analyzed from the viewpoint of our contemporary knowledge about space, time and physical interactions. The lectures were delivered for students of YarGU in RSEC "Logos".22 pages, 9 figures, has been reported by parts on several Russian conferences and seminarsGeneral Relativity and Quantum CosmologyClassical Physicstext