Alexandr Batěk

Born in 1874 in Prádlo near Nepomuk, Alexandr Sommer Batěk was a Czech chemist, secondary-school teacher, editor, and prolific popularizer of science. He wrote under several names, including Heliar and Lešek, and became known for bringing chemistry and other natural sciences to a broad public in an approachable way.

Alongside his teaching and writing, he was active in intellectual and civic life. He was connected with Esperanto, supported pacifist causes, and was remembered as a thoughtful public educator who cared about both scientific knowledge and its human meaning.

Batěk died in Prague in 1944. Today he is remembered not only for his scientific interests, but also for the unusual breadth of his work: educator, writer, popular science author, and advocate for a more informed and humane society.