PAXScientific's Streamlining Principle

The Streamlining Principle As a naturalist with the Australian Department of Fisheries and Wildlife, Jay Harman developed a fundamental understanding of flow geometries by observing the patterns of ocean and air currents. He repeatedly encountered the impressive effectiveness and energy efficiency of natural fluid flow, and discovered that these systems share common geometries.

How would nature do it?

TERRA video of a presentation by Jay Harman with visuals by Michael Green on biomimicry at Bioneers 2007. more info on bioneers from
WWND = What Would Nature Do?

The Sycamore Seed and the Maple Seed

We've been doing the ceiling fan thing all wrong for all these years. Turns out the best design for a fan blade is to twist it into the shape of a seed pod from a Sycamore tree. Spin it around at just 70 to 130 revs per minute, and you get the same airflow as a regular fan cranking its heart out at twice that speed. We're also digging its weirdo looks, too.

Building them like Nature shows how to

Learning from Nature How to Create Flow Without Friction

Part 1B Engineering: Biological and Medical Engineering, Fish Swimming, Lecture 1 -2 - Trout_propulsion.pdf

..."Evidence suggests that many fish exploit the natural instability of the flow energetics to assist them in propulsion and maneuvering. By tuning their own kinematics, the fish is able to swim efficiently, to generate large thrust and turning forces, and to move silently through the flow with minimal wasted energy...."
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