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Fascinating. When I was in high school and college, I spent summers interning at what is now Jefferson Labs, where potentially radioactive scrap from past experiments sat in a boneyard on site. Now it might be sifted apart and reused.
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A beautiful typographical desk calendar.
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Megalopolis Extra: free interesting display font, lots of fun special characters.
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Running a portable version allows you to do an easy side-by-side of the new FF beta with your existing install.
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Getting around the paywall for academic papers. Bonanza for researchers, both the university and Wikipedia kinds.