Comments by "Dave Powell" (@davepowell7168) on "Free Documentary - Engineering" channel.

  1. It's for children
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  2. 44:12 Barbara Farina
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  3. Wally Wallington could do it singlehandedly,demonstrations on YouTube
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  4. Unprofessional management
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  5. Levitated mass!
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  6. Well it's not rocket surgery..
    1