Bullet through Bubble filled with Helium (Schieren) © Kim Vandiver and Harold Edgerton

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Description: (curated)

A soap bubble filled with helium is pierced by a .22 caliber bullet, creating a shock wave (sharply delineated in yellow). Different gasses were introduced into the bubbles in order to study the varying speed of sound through different media. The myriad refractions make the bubble resemble a living organism. The photograph required a highly complicated technique to make visible regions of varying refraction and varying density of air. Edgerton and his assistant Kim Vandiver used the schlieren interference method for this optical study. (from "Stopping TIme" (1987), p.137) (CC)

Schlieren photography

HEE-NC-73006

Keywords:

bubble bullet bullet bubble bullet through helium bubble crystal ball helium helium bubble schlieren shot sonic speed water bubble water bullet

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