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Using high-speed video, we have studied air bubbles detaching from anunderwater nozzle. As a bubble distorts, it forms a thin neck which develops asingular shape as it pinches off. As in other singularities, the minimum neckradius scales with the time until breakup. However, because the air-waterinterfacial tension does not drive breakup, even small initial cylindricalasymmetries are preserved throughout the collapse. This novel, non-universalsingularity retains a memory of the nozzle shape, size and tilt angle. In thelast stages, the air appears to tear instead of pinch.Comment: Submitted to Phys. Rev. Lett. 4 pages, 4 figures. Revised for  resubmissio

Breakup of Air Bubbles in Water: Memory and Breakdown of Cylindrical Symmetry