How Everything Works on Instagram: "Even a waterfall as small as one meter—the height of a kitchen counter—can be surprisingly dangerous. When water drops, it can create a hydraulic, or recirculating, current. This circular motion folds the water back on itself, trapping anything that enters. While it may look calm or playful from above, beneath the surface it becomes a powerful mix of turbulence, pressure, and suction that can trap even strong swimmers and kayakers. These so-called “drowning ma