Youtube activity of "Hobgoblin Hollow" (@hobgoblinhollow4966) on "Discovery UK" channel.
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UCZ2xFuACwWtWRj4NBW9Kwow
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Hobgoblin Hollow
Commenter name
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@hobgoblinhollow4966
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"The Glaring Engineering Mistake That Made Wind Turbines Inefficient | Massive Engineering Mistakes"
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