What opposes science? Ignorance? Pseudoscience? Bureaucracy. It is he who slows down all living things, forcing him to return to pieces of paper and signatures again and again. This confrontation is not only a problem of our century. The same thing happened under Tsarist Russia and was even aggravated by the reactionaries and champions of tsarism, who pursued everything advanced and new. The life of Alexander Grigorievich Stoletov is one of the most striking confirmations of this. The discoverer of the first law of the photoelectric effect, a researcher of the magnetization of iron and electrical phenomena in rarefied gases, a brilliant theorist and practitioner known throughout the world, a popularizer of science, the founder of the first school of Russian physicists and the creator of the first Russian teaching and research physics laboratory - he experienced persecution all his life. the reactionary part of the professorship at Moscow University and supporters of the tsarist regime. This book is for those who want to follow the real and exciting struggle between the movement forward and the forces that are desperately pushing back.