But that’s beyond our control. What we can control is the gifts we offer our toddlers that best hold their attention span, ...

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Triangle wheels can be comfortable! Actually, with this type of suspension, almost any wheel shape would feel like normal round ones. If you like this video, don't forget to subscribe :) Army nurse's ...

Is the circle obsolete? We explore the concept, physics, and engineering challenges of triangular wheels (Reuleaux triangles) and the science of constant diameter curves. See how they actually work!