2 Ergebnisse für: 135.378
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720p HD Strange Helicopter! (twin counter-rotating blades) for heavy lift - YouTube
https://www.youtube.com/watch?v=FqWvDEMOzOo&feature=related
This unusual helicopter was being used to transport large and apparently heavy loads to the construction crews at remote 500kv power transmission line tower ...
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David Weinberger on Too Big To Know - YouTube
https://www.youtube.com/watch?v=7Zw6f4ygYGo
We used to know how to know. Get some experts, maybe a methodology, add some criteria and credentials, publish the results, and you get knowledge we can all ...