Also, digging in sand is easy. But blowing up granite isn't. The Ice age strippe... | Hacker News

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		jillesvangurp 21 days ago \| parent \| context \| favorite \| on: 250MWh 'Sand Battery' to start construction in Fin... Also, digging in sand is easy. But blowing up granite isn't. The Ice age stripped a way a lot of soil in Finland.

Hamuko 21 days ago [–]

We’re pretty accustomed to building underground in Finland. You can find all sorts of English-language articles about it.

https://abcnews.go.com/International/helsinkis-underground-c...

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