Gsus4@mander.xyz to Technology@lemmy.worldEnglish · edit-222 days agoSwitzerland dug a hole the size of two soccer fields to install the world’s most powerful underground battery, able to output 1.2 GW within milliseconds.www.ecoticias.comvideomessage-square135fedilinkarrow-up1500arrow-down19
arrow-up1491arrow-down1videoSwitzerland dug a hole the size of two soccer fields to install the world’s most powerful underground battery, able to output 1.2 GW within milliseconds.www.ecoticias.comGsus4@mander.xyz to Technology@lemmy.worldEnglish · edit-222 days agomessage-square135fedilink
minus-squarefrongt@lemmy.ziplinkfedilinkEnglisharrow-up1arrow-down3·21 days agoStrictly speaking zero depth, but to build one you need at least some amount of surface to stand on. A good one has grass, which needs a few inches of soil, but a really good one also has crushed stone and other layers before that.
Strictly speaking zero depth, but to build one you need at least some amount of surface to stand on. A good one has grass, which needs a few inches of soil, but a really good one also has crushed stone and other layers before that.