

Model of steam engine developed by Russian inventor Ivan Polzunov [1728-1766]. Reproduction from book "The Life and Works of the First Russian Heat Engineer Ivan Polzunov."
- Categories: Economy, Business & Finance, Science & Technology
- Location: Russia
- Event date: 22.07.1766
- Date published: 22.07.2009
- Author: RIA Novosti
- Credit: Sputnik
- Source: Sputnik
- Original: 78-5342, 6x6 film
- Media: JPEG, 2362x3832px, 2.8Mb