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Figure 1 | SpringerPlus

Figure 1

From: Aerodynamic drag of modern soccer balls

Figure 1

Photographs of soccer balls. (a) Adidas Roteiro: smooth surface with 32 pentagonal and hexagonal panels. (b) Adidas Teamgeist II: small protuberances with 14 panels. (c) Adidas Jabulani: small ridges or protrusions with 8 panels. (d) Adidas Tango 12: small grip texture with 32 modified panels.

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