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| Science & Technology |
| How the word 'helicopter' was born |
| 2024-02-12 |
| Direct Translation via Google Translate. Edited. by Vladimir Sosnitsky [RedStar] 95 years ago, a rotary-wing aircraft was designed for the first time in our country. |
| Posted by:badanov |
| #2 |
| Posted by: Grom the Reflective 2024-02-12 11:40 |
| #1 |
| Posted by: Seeking Cure For Ignorance 2024-02-12 09:37 |