S.P.L. Sørensen Google doodle doubles as a quiz for pH levels of food, soap & batteries


Today’s Google doodle honors the Danish chemist S.P.L. Sørensen.

As the head of Copenhagen’s Carlsberg Laboratory, Sørensen is known for inventing the pH scale to measure acidity and alkaline levels of substances and solutions.

Leading to a search for “S.P.L. Sørensen,” the animated doodle presents a tomato, an egg, broccoli, a lemon, soap and battery to quiz-takers, who must guess each object’s acidity level by clicking on the right or left arrows on either side of the illustrated Sørensen.

Born in Havrebjerg, Sørensen first studied medicine and then switched his studies to chemistry. His research around acidity levels involved the concentration of proteins and hydrogen within substances — thus the pH label. During his career, Sørensen worked in the Danish Polytechnic Institute lab and as a consultant for Denmark’s Royal Naval Dockyard.

The Google Doodle blog does not include any details on Sørensen or the doodle beyond where it is being shared. Today is not Sørensen’s birthday, so it’s a mystery why Google chose today to honor the chemist.


About The Author

Amy Gesenhues is Third Door Media’s General Assignment Reporter, covering the latest news and updates for Search Engine Land and Marketing Land. From 2009 to 2012, she was an award-winning syndicated columnist for a number of daily newspapers from New York to Texas. With more than ten years of marketing management experience, she has contributed to a variety of traditional and online publications, including MarketingProfs.com, SoftwareCEO.com, and Sales and Marketing Management Magazine. Read more of Amy’s articles.





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