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Recently we talked about flux and Gausses law. One thing that flux was compared to was the air of a fan hitting a wall. This could also be applied to sailing in a similar sense, even though it doesn’t involve electric fields. Electric flux is the electric field multiplied by the surface area of the plane the e-field is traveling through. When wind hits perpendicular to a sail, the force causes the boat to move. When it gets particularly windy, to prevent the force of the wind from causing the boat to keel over, the mainsail can be shortened. The action of bringing the sail down lower decreases the amount of surface area that the wind can push against. By decreasing the surface area of the sail, the “flux” will also decrease. So even though this isn’t exactly the same, the concepts are similar.


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