If you are relying on water pressure to hold your boat in place, you're a bigger fool than I thought.
Originally Posted by solent
You are right, if you notice I said when the boat pulls on it. The pressure is downward. Tie a rope say to a garbage/dustbin lid, throw it over the side, pull it up, you will notice the pressure is not neutral.
The resistance you feel, trying to pull a dustbin lid up, is not water pressure, but resistance due to the shape of the lid and the viscosity of the water. However, water is not as viscous as mud or sand, which provides far more resistance to the anchor moving. You might want to re-read what I've written previously about what the real forces holding your anchor to the bottom really are.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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Still—DON'T READ THAT POST AGAIN.