| user: | retpirato |
| created: | February 27, 2019 |
| karma: | 48 |
| 1. | Nawlz (Interactive Comic)(nawlz.com) |
| 2. | Measuring Angle and Distance with Your Thumb(vendian.org) |
| 3. | The First Church of Artificial Intelligence? – American Digital News(americandigitalnews.com) |
| 4. | Playfair Cipher(en.wikipedia.org) |