Water Turbine
A free source of infrasound, no biomass needed. Place the Water Turbine hub (its axle runs the way you face) and 8 Turbine Blades round it, upright, across the axle: a 3×3 wheel. Once whole, the blades vanish and the hub draws the wheel turning.
Water turbine
Drag to turn · wheel to zoom · floors count from the bottom; on the floor maps north is up.
Turbine Blade8 Turbine Blade × 8
Water Turbine Water Turbine × 1
The hub and 8 blades in an upright plane across the axle (here the axle runs east–west). Moving water on one side of the wheel; a vibrating rod touches the hub at the axle's end.
Only moving water touching the wheel turns it: a waterfall down one side, or a current under it (sunk to the axle). Still water, like most rivers and seas, does nothing. Water pushing both ways cancels: a waterfall down each side gives 0 W.
Up to 20 W at a fixed 4 Hz (the slow gear): its note comes from its build and cannot be tuned. A Vibrating Rod touching its hub (at the end of the axle) carries it away; an Octave Converter moves it up (8 Hz, 16 Hz). Click it to read its push.