Low tech sand battery could be a game changer

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goldfish21
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16 Nov 2022, 1:48 pm

Thought this was neat for storing heat:

https://www.iflscience.com/gigantic-san ... ergy-66243


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auntblabby
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18 Nov 2022, 3:42 am

yeh i saw that in my email. i am sure it could be used multiple ways. sand is a lot more benign than some other stuff being used for batteries.