Erik Gregersen
Erik Gregersen
Encyclopædia Britannica Editor
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BIOGRAPHY

Erik Gregersen is a senior editor at Encyclopaedia Britannica, specializing in the physical sciences and technology. Before joining Britannica in 2007, he worked at the University of Chicago Press on the Astrophysical Journal. Prior to that, he worked at McMaster University on the ODIN radio astronomy satellite project. 

Primary Contributions (416)
Ju Wenjun
Ju Wenjun is a Chinese chess player who became the women’s world chess champion in 2018. Ju learned to play chess at the age of seven, when she chose lessons as something interesting to do after school. She soon started to do well against local players her same age and in national tournaments. She…
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