Japanese Anime 2009-11-13 世にも不思議な暗算王 Human Calculator (1 of 3) Japanese abacus champion versus German human calculator Rüdiger Gamm. calculationcalculatorGammhumanKokubunmentalOhnoRüdigerSatoshitaichiサマーウォーズホムンクルス国分太一土屋宏明大野智暗算脳WACOCA JAPAN: People, Life, Style.
WACOCA JAPAN: People, Life, Style.