Science: Deepest Depth

The speleological depth record passed last week from Italy to France. Speleologist (cave explorer) Pierre Chevalier, a chemical engineer above ground, led an expedition into a hole in the limestone body of the Dent de Crolles, a 6,765-ft. mountain in the western Alps. Eleven hours later the party emerged from the other side of the mountain and announced that they had worked their way 658 meters (2,158 ft.) below their starting point. The previous record, near Verona, Italy: 637 meters (2,089 ft.).

It took M. Chevalier and his fellow cave crawlers twelve years to explore the Dent de Crolles, which is riddled...

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