Freeze Frame — High Speed Water Impact at 1/1,000,000s
142.60 £
A steel ball bearing dropped into water, photographed at 1/1,000,000 second — the impact crown frozen at its maximum extent, the underwater cavity visible through the water surface, the ball barely visible at the cavity base.
Description
Water impact photography at microsecond time resolution reveals the full dynamic sequence of crown formation — the upward-moving water curtain produced when a projectile impacts a liquid surface. This image was made with a microsecond-duration xenon flash triggered by a laser-interrupt circuit positioned below the water surface, the flash duration of approximately one microsecond providing freeze capability far exceeding any camera shutter. A 25mm steel ball bearing dropped from 30cm produces the crown at its maximum height (approximately 120ms after impact), the impact cavity still open below the water surface. The crown rim shows the characteristic Rayleigh-Taylor instability fingers that will become separated droplets as the crown collapses. The ball itself is visible at the base of the underwater cavity, surrounded by the air bubble entrained by its impact. Shot in a darkened studio against a black background.
