A fun side note, the Western Boundary Time Series project is a neat bit of physics: https://www.aoml.noaa.gov/phod/wbts/ https://www.aoml.noaa.gov/phod/wbts/ O

A fun side note, the Western Boundary Time Series project is a neat bit of physics: https://www.aoml.noaa.gov/phod/wbts/ https://www.aoml.noaa.gov/phod/wbts/ One can measure the rate of flow of seawater (about ~30Sv, or 30 million cubic meters per second!) by the potential induced on salt ions from moving through the earth's magnetic field on a old abandoned telegraph cable between Florida and the Bahamas. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023GL105170 https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/202... (TLDR, it's dropping about 1% per decade currently)