Genius Thinking (From the writings of Abu Rayhan Beruni and Abu Ali Ibn Sina)

Abstract: This article examines the scientific contribution to world science and the correspondence of two great scientific thinkers of the Eastern Renaissance period (9-12 centuries) Abu Rayhon Beruni and Abu Ali Ibn Sina. An analysis and commentary is given on each issue discussed by the two great giants of scientific thought of that period. It is also noted that in those distant Middle Ages it was not possible to test their guesses empirically, but nevertheless their reasoning and guesses turned out to be correct and were subsequently proven scientifically, with the help of experiments and experiments. Some questions of existence discussed by them still remain relevant.