Etymograph

English

jansky

Named after radio astronomer Karl Guthe Jansky.

The story

Named after radio astronomer Karl Guthe Jansky.

Today it means

noun A non-SI unit (symbol Jy) measuring electromagnetic flux density equal to 10⁻²⁶ watts per square meter per hertz.

Language periods are conventional ranges, not dates for this word.

Etymograph / jansky