invention
Topic | Replies | Views | Activity | |
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Inventions and attempted inventions | 16 | 518 | 5 December 2024 | |
Make It Sew—the Inventors and Inventions behind the Sewing Machine | 2 | 295 | 12 May 2024 | |
Three-Phase Power: Nikola Tesla v. Mikhail Dolivo-Dobrovolsky | 4 | 684 | 1 December 2022 | |
Who Invented the Mouse “Snap Trap”? | 1 | 323 | 5 April 2022 |