This dimension groups observatories by the year they began operating. Wikipedia notes that observatories have long been built for disciplines including "astronomy, climatology/meteorology, geophysics, oceanography and volcanology," with new instruments continually replacing older ones as technology improves. Browsing by operational start year lets a visitor compare observatories that came online in the same period.
Facts
Comparison
Field Origin Era Operational Start Year
Sources
1. Wikipedia: History of the telescope
Wikimedia FoundationHistory of the telescope, lead sectionQuote, History of the telescope, lead section
The history of the telescope can be traced to before the invention of the earliest known telescope, which appeared in 1608 in the Netherlands, when a patent was submitted by Hans Lippershey, an eyeglass maker.
Encyclopedia Britannica: Space Exploration
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