By Peter Weiss
Imagine poking a liquid to create holes that persist like those in swiss cheese. Incredible as that might sound, a group of scientists has done it.
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Although the bizarre effect showed up only under extreme laboratory conditions, similar effects might be present in some industrial and geologic processes that involve fluids, says physicist Robert D. Deegan of the University of Texas at Austin. He and his colleagues describe their hole-riddled fluids in the May 7 Physical Review Letters.