

The room of the primary time and frequency standard.
- Categories: Science & Technology
- Location: Moscow region, Russia
- Event date: 08.08.2018
- Date published: 08.08.2018
- Author: Sergey Pyatakov
- Credit: Sputnik
- Source: Sputnik
- Original: Digital
- Media: JPEG, 5192x3424px, 9.6Mb