A true mutant massacre.

#Comics #ComicBooks #XMen #MarvelComics #Gauging #Disreputable

https://www.ebay.com/itm/134412857304?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=MNxOOkP8SOy&sssrc=2349624&ssuid=ZdkiyrHuQP-&var=&widget_ver=artemis&media=COPY

Brass Chelsea Clock Used For USGS Stream Gauging Gifted To Me (c. 1920 (?))
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https://labs.waterdata.usgs.gov/visualizations/gages-through-the-ages/ <-- history of USGS stream gauging
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A retired USGS hydrographer gifted me this clock, from an A-35 Freig Graphic Recorder he told me.
Vintage / historic instrumentation like this is such a – literally - solid reminder of the history of stream gauges and their measurements by the USGS across the USA, from the 1st measurement on the Rio Grande in 1889
It is a pleasure and indeed an honour to now have it on my office desk.
#GIS #spatial #mapping #hydrology #USA #stream #gauging #gage #history #instrumentation #vintage #historic #clock #clocks #ChelseaClock #USGS

For those interested in practical maths in the Early Modern Period, the author has sent me a link to his really interesting PhD thesis on the history of gauging
Gauging a State: Excise Taxation, Practical Mathematics, and Cask Measuring in Seventeenth Century England
#practicalmathematics #gauging
https://www.repository.cam.ac.uk/handle/1810/342104