HISTORIANS of mathematics attribute the first use of the cross x as a symbol for multiplication to William Oughtred (“Clavis Mathematicae”, London, 1631). See W. W. R. Ball's “Short Account of the ...

Scientists have developed a new platform for the generation and detection of ultrashort UV-C laser pulses on femtosecond timescales. This breakthrough could unlock new opportunities for transforming ...

Terminator 2D: No Fate is a wonderfully realised tribute to one of the single greatest movies ever made, punctuated with pitch-perfect music, exquisite pixel art, and brilliant Easter eggs. Play as ...

This Communist Party slogan was heavily used during the Cultural Revolution, an era in which citizens were incentivized to spy on and even falsely accuse family and neighbors of being disloyal to ...