Dadifer@lemmy.world to science@lemmy.worldEnglish · 2 天前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 Metersfarmingdale-observer.comexternal-linkmessage-square70linkfedilinkarrow-up1187arrow-down16
arrow-up1181arrow-down1external-linkA 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 Metersfarmingdale-observer.comDadifer@lemmy.world to science@lemmy.worldEnglish · 2 天前message-square70linkfedilink
minus-squaretowerful@programming.devlinkfedilinkEnglisharrow-up16arrow-down2·2 天前 Can you calculate the weight of a sphere of 9 m of displaced water ? No ? Well, it is 382 tons. Metric strikes again. I bet you didn’t even have to convert through football fields, elephants, or olympic sized swimming pools!
minus-squareA_A@lemmy.worldlinkfedilinkEnglisharrow-up3·2 天前indeed i made a very simplified calculation not taking into account increase density of salted water nor increased density because of compressibility of water at 500 m deep. Basically i took 1m³(water) is 1 (metric) ton.
Metric strikes again.
I bet you didn’t even have to convert through football fields, elephants, or olympic sized swimming pools!
indeed i made a very simplified calculation not taking into account increase density of salted water nor increased density because of compressibility of water at 500 m deep. Basically i took 1m³(water) is 1 (metric) ton.