Animated Google Petri Dish Logo Honors Julius Richard Petri

google-petri-doodle

Julius Richard Petri, inventor of the Petri dish, was born on this date 161 years ago, and Google has marked the occasion with a Google Doodle.

The logo features six Petri dishes in the Google colors, and when you click for the animation, you see a hand swapping each dish, and then watch as the bacteria grows in each one.

Then, once the bacteria has finished growing, you can mouseover to see what was cultured in each Petri dish, which includes smelly socks, a doorknob, a keyboard, a dog’s mouth, soil in a rainstorm, and a kitchen dish sponge.

Petri invented the dishes in 1877 while assigned to the Imperial Health Office in Germany as an assistant to Robert Koch, who is referred to as the father of modern bacteriology.

About the author

Jennifer Slegg began as a freelance writer, and turned to search engine optimization and writing content for the web in 1998. She has created numerous content-rich sites in niche markets and works with many clients on content creation, strategy, and monetization. She writes about many search industry and social media topics on her blog, JenniferSlegg.com and is a frequent speaker at search industry conferences on SEO, content marketing and content monetization. Acknowledged as the leading expert on the Google AdSense contextual advertising program, she runs JenSense, a blog dealing exclusively with contextual advertising. She is also the founder and editor of The SEM Post. She is known by many as her handle Jenstar on various webmaster forums.