Aqua Glider Underwater Toy
2:12
Added: 1 year ago
From: danielgeery
Views: 3,810
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  • No batteries, explain.

    EuroPowa 1 year ago

  • It rises on buoyancy, but the shape drives it forward or in different directions, depending on fin configuration. Archimedes' principle revisited.

    danielgeery 1 year ago

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