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A comment on Why 'rocks as big as cars' are flying down the Dolomites. Parent comment

Re:Why 'rocks as big as cars' are flying down the Dolomites by layer8 on Wednesday August 27, 2025 @06:54PM (#45046324)
The canonical “zero reference point” should be the geoid, but that also changes with time (https://en.wikipedia.org/wiki/Geoid#Temporal_change), so yes, it’s not trivial.
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