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Heads’ Up! Aerodynamic Adidas Ball Confounds Cup Goalies

Adidas AG’s Brazuca ball looks like one of the factors in the goal glut at the World Cup.

The ball, made of six thermally bonded panels each shaped like a banana skin, is more aerodynamic than its predecessor, the Jabulani, which wobbled in the air more, according to a study by the Institute of Health and Sport Science at the University of Tsukuba in Japan.