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A German Experiment Proved That Simple Concrete Spheres Make Fantastic Batteries. Now, California Plans To Submerge A 9-Meter Diameter Sphere In The Ocean And Is Already Planning Versions Of 30 Meters(farmingdale-observer.com)

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Dadifer@lemmy.world
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Cocodapuf@lemmy.world
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That’s exactly the way I would have calculated it, glad someone beat me to it though. Thanks!

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