His first inclination was to build a penguin, allowing him to focus mostly on torso motion rather than having to articulate arms and legs as well. His goal was to enable his penguin to “dance ...

This is the case with [Penguin DIY]’s tiny centrifugal water pump built from 5 ml syringes. The pump is powered by a small 8 mm diameter brushed DC motor, likely the same type that is used for ...