Soccer balls used for the test and their panel orientations. (a, b)

PDF) Effect of panel shape of soccer ball on its flight

construction of a soccer ball, foot ball

Forces on a Soccer Ball

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Variation of the drag coefficient with the type of ball and panel

Effect of panel shape of soccer ball on its flight characteristics

Is a soccer ball made with only 4 panels topologically possible? - Quora

Effect of panel shape of soccer ball on its flight characteristics

Footballs used for the test and their panel orientations: Pelada A and

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Sungchan Hong's research works University of Tsukuba, Tsukuba

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The Topology and Combinatorics of Soccer Balls