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How do you build a self-submersible boat?
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[QUOTE="Baluncore, post: 6631007, member: 447632"] Buoyancy all comes down to total vessel density. You might include an internal water ballast tank, with sufficient internal air pressure that it will drive the water out through a small bleed-hole, as used for drip irrigation. A pack, or a block of salt, will dissolve in the water over time, until the vessel floats. But that will not repeatedly sink and surface, like the CO2 bubble produced by baking soda. [/QUOTE]
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How do you build a self-submersible boat?
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