Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

Rap in 2025 was all about experimentation. From the year’s first runaway hit, NBA player-turned-musician Gelo’s single “Tweaker,” to the maximalist ecclesiastics of Playboi Carti’s Music, or even in ...

As avid puzzlers know full well, the humble jigsaw puzzle is a thing of beauty in multiple ways. Not only are jigsaws an absorbing time sink, but multiple studies have demonstrated they are good for ...

This title is part of a longer publication history. The full run of this journal will be searched. TITLE HISTORY A title history is the publication history of a journal and includes a listing of the ...

This title is part of a longer publication history. The full run of this journal will be searched. TITLE HISTORY A title history is the publication history of a journal and includes a listing of the ...

Rap and Christmas have been intertwined since the former began. Kurtis Blow’s “Christmas Rappin’,” a rhymed update of “A Visit From St. Nicholas” (better known as “‘Twas the Night Before Christmas”) ...