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What is being investigated in the longest continuous laboratory experiment in history? Detailed answer

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What is being investigated in the longest continuous laboratory experiment in history?

In 1927, Thomas Parnell, a professor at the Australian University of Queensland, set up an experiment to demonstrate to students the liquid properties of bituminous tar, a substance that is solid in its normal state. After heating the resin, he poured it into a stoppered glass funnel and closed the top, and three years later he cut off the bottom of the funnel, allowing droplets to form. The first drop fell in 1938, the next ones fell at about the same interval - a total of 9 drops have been recorded to date. This experience is considered the longest continuous laboratory experiment in history.

Authors: Jimmy Wales, Larry Sanger

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