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FUN FACT:

The Pitch Drop Experiment started in 1930 is the longest running lab experiment. It measures the flow of a piece of a highly viscous liquid, pitch. Pitch flows at a very low rate, taking several years to form a single drop. To date, only nine drops have fallen. pic.twitter.com/3d6yiUhhZW

— Fermat's Library (@fermatslibrary) May 5, 2018

via Twitter https://twitter.com/fermatslibrary

May 05, 2018 at 06:36PM