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Thread: Salt vs Fresh wave action

  1. #1
    Join Date
    Apr 2007
    Grand Haven / Muskegon, Michigan

    Salt vs Fresh wave action

    I saw the image below the other day. "Ways the Great Lakes try to murder ships" If you read the entries, one of them caught my eye and wondering if anyone can verify that it's true - and if true, why?
    Statement is "Worse in the Great Lakes because fresh water waves are spaced closer than salt water waves." Sounded like baloney, but maybe?? I'm a shrink, not a scientist!

    original image is here: https://i.redd.it/1kqzsc3lsi541.jpg

    Name:  shipmurder.jpg
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  2. #2
    Join Date
    Sep 2001
    San Rafael, CA

    __________________________________________________ ________

    Some nautical photos of Alberto Einstein have resurfaced.
    Good Old Boat, Oct./Sept 2021, under new editorship
    takes a relatively nasty (bloody tongue in cheek) dig at
    one of our best remembered scientists, but one lack
    knack sailor. This and more from an ad they sent me..

    "Sailing was one of his lifelong passions [relatively]. And
    while he most certainly understood the science behind
    the sport, the artistic aspect of it often eluded him. He
    was regularly dismasted. He often needed a tow. Once
    after capsizing he nearly drowned..."

    Have a problem with more than the style of writing here.
    Einstein wldn't have been Einstein if he hadn't taken some
    impossible risks - including the guts to persist in learning
    the 'artistic aspect' of handling a boat, because he is a
    physicist most original, because it is a lifelong necessity.

    Can we know the tally of dismastings? More than two?
    More than four? 24? Are they by unrigged small dinghys?
    'Perseverance' the new operative noun, comes to mind.
    Could someone explain just what the 'artistic aspect..
    behind the sport of sailing' actually entails. Wave theory?
    Last edited by ebb; 09-06-2021 at 09:40 AM.

  3. #3
    Join Date
    Sep 2001
    San Rafael, CA
    Kyle, My being neither scientist nor formally educated - Ebb
    graduated 2nd from last highschool, and was kicked out of
    Rutgers in his first year.
    But I think the fetch of the Lakes has something to do with
    the size of waves.. Wind creates waves of certain (limited)
    height, not to say that certain seas in the contained bowls
    of the Lakes won't be equally destructive. But not quite.

    Oceans create swells from multiple events like hurricanes, tides,
    typhoons, tsunamis. Waves build on the huge fetch of unlimited
    water. I think bigger water bigger waves, nothing to do
    with fresh and salt, but the room waves have to express
    theirselves. Bigger waves want more room to be bigger.
    Water being water bigger means longer. Water doesn't
    compress, and being heavy has to express itself naturally.

    I looked up the word Seiche, which describes the tidelike
    action of water sloshing around in the Lakes essentially from
    wind. Wind pushing water up onto one shore and it sloshing
    back on another. There are no tides in the Great Lakes. But
    like water it sure can get agitated at times. But surely, waves
    spaced closer together, even if they're Fresh, are no more
    ferocious than the more spacious Salt.
    Last edited by ebb; 09-09-2021 at 10:03 AM.

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