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Dryfire @ Dryfire @lemm.ee
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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

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  • There are 2000 year old Roman concrete piers that are still just hanging out in sea water. So it's possible if you find the right mix.