Usage History of 'pulsars'

The following chart shows how frequently 'pulsars' appeared in printed materials over time. For example, the word 'pulsars' occurred 2 times in books in 1846 and 6,724 times in 2008. From 1846 to 2008, the word 'pulsars' was used a total of 223,383 times in books scanned by Google. See Reference: Google Ngram project.

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