Upload chronos_corpus_full/Geodimeter.txt with huggingface_hub

chronos_corpus_full/Geodimeter.txt

@@ -0,0 +1,39 @@
+__NOTOC__
+File:Geodimeter 8 control panel.jpg|thumb|upright=1.35|Operator controls and sight of a Geodimeter
+The Geodimeter (acronym of geodetic distance meter) was the first optical electronic distance meter surveying instrument.
+It was originally developed for Speed of light#Measurement|measuring the speed of light.
+It was invented in 1947 by and commercialized in 1953 by the AGA AB|AGA (Aktiebolaget Gasaccumulator) company of Sweden.<ref name="AGA 2014"></ref>
+It was used in the Transcontinental Traverse.
+
+The Geodimeter business was acquired by SpectraPrecision which was acquired by Trimble Inc.
+
+==Electronic mechanism==
+The mechanism uses a Kerr cell shutter in an optical train that chops a collimated beam of light under the control of a precision electronic oscillator in the megahertz range. It is similar in principle to the mechanical chopper in Fizeau's measurement of the speed of light in air that used a toothed wheel.<ref></ref>
+
+==See also==
+*Laser rangefinder
+*Lidar
+*Tellurometer
+
+==References==
+
+===Sources===
+*
+*
+*
+*
+*
+*
+
+==Further reading==
+*
+*
+* 
+*
+
+==External links==
+* https://celebrating200years.noaa.gov/distance_tools/aga_gm6.html AGA Geodimeter Model 6 (Going the Distance: A Photo Collection Illustrating the History of Distance Measurement Tools at the National Geodetic Survey)
+
+Category:20th-century inventions
+Category:Surveying instruments
+Category:Swedish inventions