Scientist standing at blackboard with mathematical formulas written on it.
- Categories: Education, Science & Technology
- Location: Russia
- Event date: 01.06.1963
- Date published: 03.02.2005
- Author: Vsevolod Tarasevich
- Source: Sputnik
- Credit: Sputnik
- Original: A156048, 6x9 film
- Media: JPEG, 2229x3000px, 1.4Mb