Dryfire

joined 3 months ago
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That's me in c/memes@sopuli.xyz
Baldur's Gayte in c/science_memes@mander.xyz
[–] Dryfire@lemm.ee 3 points 1 week ago

The real issue is "Hole" is not desctiptive enough for a clear answer. A straw has one "Through Hole". If you dig a hole in the ground you have one "Blind Hole".

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 in c/science@lemmy.world
[–] Dryfire@lemm.ee 2 points 1 month ago

Really good points. I was only thinking of the structure of the concrete... Sea life growth is a whole other ball game!

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 in c/science@lemmy.world
[–] Dryfire@lemm.ee 15 points 1 month ago (2 children)

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.