This single PDF contains 7 articles (72.4 mb) that I have scanned from BBC Knowledge, Popular Science & Stuff. They are not OCRed:
1. NASA\'s Craziest Ideas
2. Preparing for Mars
3. The Garbage Man
4. The Shadow Universe
5. A Good Night\'s Sleep
6. The Structure of the Periodic Table
7. 15 Years of Tech
I hope you like them!
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