Jonathan Bird is a professional Emmy Award-winning underwater cinematographer with experience in all aspects of underwater wildlife cinematography and still photography. As president of the non-profit environmental organization Oceanic Research Group, Inc., he produces educational films about marine life for use in schools and libraries, as well as satellite learning. Jonathan Bird dives Force Fins!
http://www.oceanicresearch.org/

Duration : 0:1:1

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This instructional video by Scuba.com describes the two major types of fins available. There is the paddle fin and the split fin. The paddle fin uses more effort from your leg to push the water. It’s similar to a boat paddle, whereas the split fin is similar to how a propeller from a boat works. The water goes through the blade and creates vortices that push you along. Ultimately the split fin reduces the amount of energy you use, and it saves your air because you’re using less energy.

Duration : 0:1:16

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