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For Lilian and the Indigos - Above Top Secret

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which converge <strong>and</strong> spin an impeller. The impeller is allowed to spin <strong>and</strong> oscillate up <strong>and</strong><br />

down. On it’s upstroke it lifts a rod connected to a shut-off valve at <strong>the</strong> bottom of <strong>the</strong><br />

cylinder. This stops <strong>the</strong> flow causing cavitation which sucks <strong>the</strong> impeller back down. The<br />

cycle produces a pressure wave that constructively interferes with <strong>the</strong> following cycle,<br />

thus accumulating kinetic energy.<br />

HYDROFOIL<br />

This is a st<strong>and</strong> up hydrofoil that uses wing warping to steer. The user can scoop out a<br />

ramp by leaning forward or lean safely from side to side. The boat does all <strong>the</strong> pulling,<br />

lessening fatigue for a longer ride <strong>and</strong> allowing <strong>the</strong> rider to focus on technique.<br />

ROBOGROOMER

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