21 by jnord | 9 comments on Hacker News.
New top story on Hacker News: Ask HN: Are there any HN-style web sites with mechanical engineering content?
Ask HN: Are there any HN-style web sites with mechanical engineering content?
21 by jnord | 9 comments on Hacker News.
21 by jnord | 9 comments on Hacker News.
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