Friday, June 17, 2022

The Scientific Mind: Time and Tide

Annacis Channel was full when I crossed it the other day.  That was about 5:00 p.m.  It was full again this morning when I crossed it on the bus.  That was about 7:30 a.m.  Down here in Ambleside, waiting for the walking group, a good chunk of the beach is showing.  That means the tide is falling, which is reasonable.  (The traveling, almost standing, wave that is the tides is generally about six hours out of phase with the position of the moon.  Therefore the highest tides are in the morning and the evening, rather than at midday and midnight.)  High tide is probably somewhere around 6:00, both a.m. and p.m. the full moon was yesterday, so we are probably having King tides. 

When I crossed it the other day, I noticed that Annacis Channel was full of debris, probably picked up off the shorelines, having been deposited there some other time.  So the king tides are picking up debris that other tides have left behind.

Gloria would have been interested in all of this.  But Gloria is dead.  What is the point of knowing all of this, now?

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