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High-speed photograph of secondary drop formation following the impact of a water droplet on water. The impact causes the surface of the pool to collapse, creating a rush of water inwards and upwards to form a column. Surface tension effects along the column cause a secondary drop to form. Shock waves radiate outwards as concentric circular ripples.

The impact of a water droplet Science Photo Library via Reuters Connect

2025-11-13T10:00:02.452Z

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