Today, I learned that some football clubs are using Reuleaux tetrahedrons instead of spherical balls in training to improve goalkeepers' reflexes. https://en.wikipedia.org/wiki/Reuleaux_tetrahedron

Video source: https://x.com/futebol_info/status/1899217444235043025

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Hyeri’s past meets present? Ex-boyfriend Ryu Jun Yeol rumored to be dating Han So Hee!

Hyeri #GirlsDay #RyuJunYeol #HanSoHee #InterestingPost #OfficeWorkers #CoupangPlay #KoreanEntertainment #VarietyShow #InstagramControversy #seoulcrush