We have here yesterday morning’s low tide in nearby Blue Hill. A soft rain is keeping the rock weed vibrant until its seawater blanket gets pulled up again. Tides here are usually between 10 and 12 feet in height.
Scientists don’t yet fully understand the seas’ gravitational resonances and the other factors affecting the twice-daily tidal phenomenon. However, Jonathan White’s fascinating book Tides helps laymen understand what scientists do know.
One thing is sure: we’ve come a long way since Leonardo da Vinci and others thought that the earth was a living entity that slowly breathed in and out through large lungs that moved the tides. (Brooklin, Maine)