Sima Qian's calendar was considered revolutionary, setting 365.25 days to a year, and 29.53 days to a month The planet 12620 is named Simaqian in his honour Sima thought the purpose of history was ...

Richard Sima is a neuroscientist turned science journalist who writes the Brain Matters column for The Washington Post's Well+Being desk. After more than a decade of research, Sima transitioned ...

Young boy Cestmir finds a magic rock which allows him to bring the seeds of the flowers which allow flying from Blue Planet... Young boy Cestmir finds a magic rock which allows him to bring the ...