Comment on xkcd #3135: Sea Level
antlion@lemmy.dbzer0.com 1 week agoTidal prediction requires a harmonic analysis of observed tides, and its location specific. Not sure how a watch is supposed to do that other than holding a database of tidal coefficients.
This video contains a lot of interesting history of tidal analysis and prediction:
shalafi@lemmy.world 1 week ago
There are adjustments you can make on the watch. Requires tables and whatnot. That’s why it took me so long to figure out it wouldn’t work!