About the Images
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Evolution of a planar cross-section of a sulfur hexafluoride gas column surrounded by air and impulsively accelerated by a shock wave.
Compound Droplets on a Fiber
Two compound droplets made of pure (in blue) and soapy (in red) water and silicon oil hanging on a horizontal fiber.
Galaxy in a Kitchen Sink
A spinning pentagonal hydraulic jump and logarithmic spiral waves downstream form when a jet of fluid hits a horizontal plate, as seen from below the plate.