| Scientific American (2021-09, September).pdf | 37.58 MB |
| Scientific American (2021-11, November).pdf | 35.84 MB |
| Scientific American (2021-07, July).pdf | 28.14 MB |
| Scientific American (2021-10, October).pdf | 27.98 MB |
| Scientific American (2021-06, June).pdf | 26.83 MB |
| Scientific American (2021-08, August).pdf | 24.66 MB |
| Scientific American (2021-03, March).pdf | 24.39 MB |
| Scientific American (2021-04, April).pdf | 22.42 MB |
| Scientific American (2021-12, December).pdf | 21.95 MB |
| Scientific American (2021-05, May).pdf | 20.66 MB |
| Scientific American (2021-01, January).pdf | 18.45 MB |
| Scientific American (2021-02, February).pdf | 16.9 MB |