‎TSIOLKOVSKY (K.)‎
‎Sovremennoye sostoyanie Zemli [in cyrillic] - (L'ETAT CONTEMPORAIN DE LA TERRE) ---- EDITION ORIGINALE RUSSE ---- FIRST RUSSIAN EDITION‎

‎Kaluga, (Edité à compte d'auteur), 1929, un volume in 8 broché, couverture imprimée (N° 17), 36pp.‎

Reference : 5095

‎---- EDITION ORIGINALE RUSSE ---- FIRST RUSSIAN EDITION ---- DSB XIII p. 483 ---- "Tsiolkovski was a pioneer in the field of experimental aerodynamics ; by among other things, building one of the world's first wind-tunnels, he derived a number of highly important laws of aerodynamics. The father of modern rocketry, Konstantin Eduardovich Tsiolkovski (1857-1935) is the founder of modern aerodynamics and is probably most widely known for his works on rocket propulsion. However his contributions to several fields of science have been immense and of exceedingly seminal character"**5095/N° 17.CART.RUSS‎