Johann Heinrich Blasius
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Johann Heinrich Blasius (October 7, 1809 – May 26, 1870) was a German zoologist. In 1836 he was director of a museum in Brunswick. He was the author of two books on vertebrates: Fauna der Wirbelthiere Deutschlands (1857) and Die wirbelthiere Europa's (1840) (with Alexander Keyserling).
His son, Wilhelm Blasius, was an ornithologist.
An empirical formula describing turbulent flow of liquids is named after him.