4 by femto | 1 comments on Hacker News.
New top story on Hacker News: How much energy does it take to produce 1 kilogram of the following materials?
How much energy does it take to produce 1 kilogram of the following materials?
4 by femto | 1 comments on Hacker News.
4 by femto | 1 comments on Hacker News.
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