SAISON: 1
INHALT
Helicopters took a lot of their early inspiration from one of nature's most efficient fliers: the dragonfly! Danni looks at how this insect and the wings of owls continue to inspire helicopters.
SAISON: 1
Helicopters took a lot of their early inspiration from one of nature's most efficient fliers: the dragonfly! Danni looks at how this insect and the wings of owls continue to inspire helicopters.
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