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Functional Family: Mock theta mystery solved Erica Klarreich A pair of mathematicians has solved a problem that had tantalized number-theory researchers for more than 8 decades. It is the so-called final problem of the legendary Indian mathematical genius Srinivasa Ramanujan. In the years before his death in 1920, Ramanujan studied theta functions, which are numerical relationships that show special symmetries. On his deathbed, Ramanujan wrote a letter to his British collaborator G. H. Hardy, in which he listed 17 complicated formulas for new functions. He called them mock theta functions because they had some properties similar to those of theta...

"I knew that scholars didn't really understand why it's called the Parthenon," says Utrecht University archaeologist Janric van Rookhuijzen, "so I started looking into a giant puzzle of ancient texts, inscriptions, and archaeological remains." His surprising, perhaps even heretical, theory suggests that "Parthenon" may not have originally referred to the structure we know today -- which is sometimes called the Great Temple of Athena -- but to part of an altogether different temple on the Acropolis. For van Rookhuijzen, the crux of the issue lies in the meaning of the Greek word parthenon -- "a room for virgins or unwed...