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  1. I took this timelapse during the “supermoon” two weeks ago. Full moon and new moon normally produce big tides because the effects of the sun and moon combine rather than cancel. It’s even a little stronger during a supermoon! There was a tidal swing of about 8’ that day (enough for a wave to nail the camera badly once at high tide…)

    The weirdest thing to me is that the high tides don’t fall exactly when the sun and moon pass meridian. That’s what I was expecting when I started research for this project, but it turns out there’s a LOT of local variation (in Santa Barbara, as you can see, the tides are almost 90 degrees out of phase with the sun and moon…)

    [Source Video]( (4k resolution and 3x slower – the 15 second uploaded gifv restraint is a pain…)

  2. Does the sun really matter? I mean it’s pretty far away… and the tidal force goes like 1/distance^3

    Moon tidal force / sun tidal force = (sun dist/moon dist)^3 * (moon mass/sun mass) =
    (390)^3 * (4*e-8) = 2.4

    Holy crap that is absolutely amazing!!! The moon and sun are somehow the perfect distance mass ratios to both contribute almost equally to the tides! The moon tidal force is about 2.5x that of the sun

  3. “Tide goes in, tide goes out never a misscommunication! You can’t explain that” – Bill “fuck face” O’Reilly

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