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A comment on US Government funds pilot project for heated sand energy storage. Parent comment
Maybe today. But NASA has some interesting metal tires [0][1] which might change your mind for the future.
[0]: NASA info https://technology.nasa.gov/patent/LEW-TOPS-99
[1]: Neat youtube vid: https://www.youtube.com/watch?v=vSNtifE0Z2Q
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Maybe today. But NASA has some interesting metal tires [0][1] which might change your mind for the future.
[0]: NASA info https://technology.nasa.gov/patent/LEW-TOPS-99
[1]: Neat youtube vid: https://www.youtube.com/watch?v=vSNtifE0Z2Q