Stamp: Emblem of 7th Crystallography Congress (Soviet Union, USSR 1966)
Emblem of 7th Crystallography Congress (Soviet Union, USSR 1966)
28 January (Soviet Union, USSR ) within release International Congresses and Assemblies goes into circulation Stamp Emblem of 7th Crystallography Congress face value 6 Russian kopek
| Stamp Emblem of 7th Crystallography Congress in catalogues | |
|---|---|
| Michel: | Mi:SU 3176 |
Stamp is horizontal format.
Also in the issue International Congresses and Assemblies:
- Stamp - 9th Microbiology congress face value 6;
- Stamp - Emblem of 7th Crystallography Congress face value 6;
- Stamp - International Scientific Congresses for Poultry-breeding. face value 6;
Stamp Emblem of 7th Crystallography Congress it reflects the thematic directions:
Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe.Modern science is typically divided into two or three major branches: the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology), which study individuals and societies.The formal sciences (e.g., logic, mathematics, and theoretical computer science), which study formal systems governed by axioms and rules, are sometimes described as being sciences as well; however, they are often regarded as a separate field because they rely on deductive reasoning instead of the scientific method or empirical evidence as their main methodology. Applied sciences are disciplines that use scientific knowledge for practical purposes, such as engineering and medicine
