Why do wind turbines (usually) have 3 blades?
| YouTube url: | https://www.youtube.com/watch?v=f3hgB-0rPOI&t=33s |
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| Created: | 6. 8. 2020 09:09:02 |
| YouTube url: | https://www.youtube.com/watch?v=f3hgB-0rPOI&t=33s |
|---|---|
| Created: | 6. 8. 2020 09:09:02 |
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