title: [Studies of A L. Chizhevskiĭ: Milestones in space biology and biorhythmology].
abstract: The authors review the experimental and theoretical studies of eminent Russian scholar A.L. Chizhevsky, and his fruitful collaboration with K.E. Tsiolkovsky, a pioneer of the science of rocket navigation. Highlighted are postulates of the modern space biorhythmology furthering the notions of A.L. Chizhevsky about the harmony in nature, and significance of rhythmic phenomena for living organisms.
mesh_terms: D001683:Biological Clocks; D002909:Chronobiology Phenomena; D002940:Circadian Rhythm; D003359:Cosmic Radiation; D018504:Ecological Systems, Closed; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D010507:Periodicity; D013026:Space Flight / Q000266:history*; D018531:Spacecraft / Q000266:history; D014586:USSR