Julius Richard Petri Receives The Google Doodle Honor

Google is running a homepage doodle honoring German bacteriologist Julius Richard Petri in parts of the world where the date has already changed to May 31st.

The date marks the 160th birthday of the scientist, who is known as the inventor of the Petri dish, an accomplishment he achieved while working as an assistant to Robert Koch. Here’s a brief history from Wikipedia:

Petri first studied medicine at the Kaiser-Wilhelm-Academy for Military Physicians (1871–1875) and received his medical degree in 1876. He continued his studies at the Charité Hospital in Berlin and was on active duty as a military physician until 1882, continuing as a reservist.

From 1877 to 1879 he was assigned to the Imperial Health Office (German: Kaiserliches Gesundheitsamt) in Berlin, where he became an assistant to Robert Koch. On the advice of Angelina Hesse, the New York-born wife of another assistant, Walther Hesse, the Koch laboratory began to culture bacteria on agar plates. Petri then invented the standard culture dish, or Petri plate, and further developed the technique of agar culture to purify or clone bacterial colonies derived from single cells. This advance made it possible to rigorously identify the bacteria responsible for diseases.

The doodle is animated, and features the word “Google,” with each letter appearing in a separate Petri dish. Simon Rueger shares this video of the animation:

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