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Added 1 new A* page:Apparently, those who attain sufficient mastery over the abacus can do without an actual physical adding machine altogether, and perform lighting-fast calculations in their head by means of a purely mental abacus—visualizing, in their mind, an abacus performing the required calculations. This art, also known as flash anzan, is the explanation given for how, earlier this year, a nine-year-old Japanese girl, Rinne Tsujikubo, shocked viewers of the Chinese brain game TV show "Super Brain" by performing the final calculation—"6,172,938 x 1,203,490," getting "7429069153620," "and double-checked her work — before her competitors, or teammate [Japanese flash anzan champ Takeo Sasano], had seemingly even finished writing their answers." You can see her cool demeanor, and the shock of her competitors—who visibly start as they realize she has buzzed in the answer while they were still working on the problem—right here; Tsujikubo performs the calculation, double checks it, and buzzes in in just 16 seconds : o.
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