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And 3 days after another HN submission on a self-powered sensor that harvest energy from soil microbes. https://news.ycombinator.com/item?id=39046697 https://n
by anvil-on-my-toe 3y ago
And 3 days after another HN submission on a self-powered sensor that harvest energy from soil microbes.
https://news.ycombinator.com/item?id=39046697 https://news.ycombinator.com/item?id=39046697