Full-effort puller
Loafing puller
Force vs group size
Per-person effort
A row of figures pulls a shared rope against a fixed anchor, and their combined force decides how far the anchor is dragged before friction and a return spring settle it in place. As the group size grows, this simulator applies two independently tunable, empirically documented losses — the mechanical coordination loss Ringelmann himself measured, and the motivational social-loafing loss identified in later research separating "I can't coordinate" from "I don't have to try as hard" — and animates each puller leaning back and glowing in proportion to their own individual share of the group's output. A live force-vs-group-size curve and a per-person effort bar chart sit alongside the animated scene so the gap between the naively expected linear force and the real total is visible as numbers, as a curve, and as body language simultaneously.