this post was submitted on 11 May 2025
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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)
submitted 1 month ago by Dadifer@lemmy.world to c/science@lemmy.world
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[โ€“] mcv@lemm.ee 5 points 1 month ago (1 children)

Sounds interesting, but considering how thick hydroelectric dams need to be to hold back a mere lake, how thick are these spheres going to be to hold back an entire ocean?