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A comment on Drone Footage of Arecibo Observatory Collapse. Parent comment

Re:Drone Footage of Arecibo Observatory Collapse by rohansingh on Thursday December 03, 2020 @02:51PM (#25293760)
Doesn't the instrument itself change over those long time periods?
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Re:Drone Footage of Arecibo Observatory Collapse by petschge on Thursday December 03, 2020 @03:56PM (#25294777)
Yes, there is some changes. Clocks drift, analog receivers age, and so on.
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