Stamp: Internation System of Units (Russia 2019)
Internation System of Units (Russia 2019)
09 July (Russia ) within release Internation System of Units goes into circulation Stamp Internation System of Units face value 53 Russian ruble
| Stamp Internation System of Units in catalogues | |
|---|---|
| Michel: | Mi: RU 2713 |
Stamp is square format.
Stamp Internation System of Units it reflects the thematic directions:
Elements of industrial instrumentation have long histories. Scales for comparing weights and simple pointers to indicate position are ancient technologies. Some of the earliest measurements were of time. One of the oldest water clocks was found in the tomb of the ancient Egyptian pharaoh Amenhotep I, buried around 1500 BCE. Improvements were incorporated in the clocks. By 270 BCE they had the rudiments of an automatic control system device.
