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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[-] mcv@lemm.ee 4 points 1 month ago

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?

[-] lagoon8622@sh.itjust.works 7 points 1 month ago

Says on the wiki 2.7 meters thick

this post was submitted on 11 May 2025

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