1923 – EPRON-1 Humidistat – E. G. Danilenko. ГидроÑтат Даниленко Е.Г. «ÐПРОÐ-1» Source: here. Original text by Alexey Rasshivalov, translated to English by Google translate. The first domestic ( and second in the world) DHD humidistat , better known as " EPRON -1 ." Built in 1923, the project EG Danilenko . Heavy machine to …
 1918 – Diving Armor by Rudi De Graff. Publication number US1368786 A Publication type Grant Publication date Feb 15, 1921 Filing date Jan 12, 1918 Priority date Jan 12, 1918 Inventors Rudi De Graff The invention relates to diving suits designed for service at great depths, one hundred feet or more, and the object …
Publication number US1370590 A Publication type Grant Publication date Mar 8, 1921 Filing date Dec 2, 1918 Priority date Dec 2, 1918 Inventors Josef Kamieniecki Original Assignee Josef Kamieniecki This invention relates to submarine or diving armor, and more particularly to a metal sectional armor of this type which by reason ot its strength and …
English text translated from the original German: (for pictures and diagrams, see pdf below) The Cybernetic Model "Tortoise" Cybernetics – In recent years, a new science was born. It enables machines to replace with highly skilled human labor, eg by electronic calculators. These machines are very complicated in structure, and only specialists with high qualifications …
The vehicle ПрОП-Ф (PrOP-F), designed by the Russian Mobile Vehicle Engineering Institute, was sent in a space mission to Phobos in 1989 (Kemurdjian et al., 1995). This 45 kg robot was able to move using hops, perform scientific experiments and transmit the collected data and the experiments results to the Earth through a radio communication …