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 3 days ago by Dadifer@lemmy.world to c/science@lemmy.world
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[โ€“] AlexLost@lemm.ee 14 points 1 day ago* (last edited 1 day ago) (1 children)

It has a turbine inside it. It is not a cement ball, it is very misleading title. It's a cement shaped hollow orb with a hydro power generator inside it.

[โ€“] Kolanaki@pawb.social 3 points 1 day ago

Well that sounds like cheating.