Adidas Brazuca soccer ball mounted on stainless steel rod in
![](https://www.researchgate.net/publication/266388204/figure/fig1/AS:392077511806992@1470489971836/Adidas-Brazuca-soccer-ball-mounted-on-stainless-steel-rod-in-preparation-for-wind-tunnel.png)
![](https://www.researchgate.net/publication/266388204/figure/fig3/AS:392077516001281@1470489972046/Wind-tunnel-experimental-drag-coefficient-results-for-the-Brazuca-and-Jabulani-balls-in.png)
Wind-tunnel experimental drag coefficient results for the Brazuca and
![](https://i1.rgstatic.net/ii/profile.image/278587509887011-1443431846987_Q128/John-Goff-6.jpg)
John GOFF, Professor of Physics, PhD, Physics
![](https://c5.rgstatic.net/m/435982309481010/images/template/default/author/author_default_m.jpg)
PDF) A comparison of Jabulani and Brazuca non-spin aerodynamics
![](https://www.researchgate.net/publication/374773900/figure/fig5/AS:11431281205805726@1700459203787/Built-in-microparticle-blowout-device-a-and-the-experimental-setup-using-the-particle_Q320.jpg)
Sungchan Hong's research works University of Tsukuba, Tsukuba and other places
![](https://www.researchgate.net/publication/374773900/figure/fig1/AS:11431281205805725@1700459203189/An-illustration-of-microparticle-counts-viral-exposure-risk-index-in-the-non-ventilated_Q320.jpg)
Sungchan Hong's research works University of Tsukuba, Tsukuba and other places
![](https://i1.rgstatic.net/ii/profile.image/869786904981506-1584384766925_Q64/Sarmad-Iftikhar.jpg)
PDF) A comparison of Jabulani and Brazuca non-spin aerodynamics
![](https://c5.rgstatic.net/m/4671872220764/images/template/default/profile/profile_default_m.jpg)
PDF) A comparison of Jabulani and Brazuca non-spin aerodynamics
![](https://www.researchgate.net/publication/374773900/figure/fig4/AS:11431281205822878@1700459203619/The-average-microparticle-count-at-peak-and-after-10s-20s-and-30s-for-expiratory_Q320.jpg)
Takeshi ASAI, Prof., Doctor of Engineering, University of Tsukuba, Tsukuba, Faculty of Health and Sport Sciences
![](https://www.researchgate.net/profile/John-Goff-6/publication/305080831/figure/fig1/AS:382018471907329@1468091709143/Adidas-Brazuca-soccer-ball-mounted-on-stainless-steel-rod-prior-to-wind-tunnel_Q320.jpg)
Sungchan Hong's research works University of Tsukuba, Tsukuba and other places
![](https://i1.rgstatic.net/publication/266388204_A_comparison_of_Jabulani_and_Brazuca_non-spin_aerodynamics/links/545c0a5a0cf2f1dbcbcb0b47/largepreview.png)
PDF) A comparison of Jabulani and Brazuca non-spin aerodynamics
![](https://0.academia-photos.com/attachment_thumbnails/112343221/mini_magick20240312-1-ybfip4.png?1710238764)
PDF) A comparison of Jabulani and Brazuca non-spin aerodynamics
![](https://i1.rgstatic.net/ii/profile.image/1031450350587904-1622928335166_Q64/Zartasha-Mustansar-2.jpg)
PDF) A comparison of Jabulani and Brazuca non-spin aerodynamics
![](https://www.researchgate.net/profile/John-Goff-6/publication/367528518/figure/fig2/AS:11431281119450391@1676087355939/Representative-climbing-helmet-oriented-to-show-impact-locations-at-the-a-top-b_Q320.jpg)
John GOFF, Professor of Physics, PhD, Physics