Re: [NTG-context] OT world history: other measuring systems?

On 1/26/2022 9:41 AM, Otared Kavian via ntg-context wrote:

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On 26 Jan 2022, at 00:17, Hans Hagen via ntg-context wrote: […] times (clocks) were definitely different per city

Regarding the issue of the absolute necessity of defining a standard time the book by Peter Galison « Einstein’s Clocks, Poincaré’s Maps » gives some interesting insight. In particular, since after the mid 19th century trains were developed while the time was not standardized, many accidents happened with hundreds of people killed. This led Henri Poincaré, Lorentz and Einstein (among other mathematcians and physicists) to th enotion of relativity…

Talking time, https://en.wikipedia.org/wiki/Soviet_calendar is a good example of a failure to replace thousands of years of reality. So, maybe some measures (feet etc) will stay with us forever. (I need to look up how these old cultured talked 'temperature'.) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------