The world’s longest running science experiment

Pitch Drop Scientist Remembered For Record-Setting Experiment
August 27, 2013
http://www.npr.org/templates/story/story.php?storyId=216191864

Science professor John Mainstone died over the weekend at age 78.
The Australian was overseer of what is said to be the world’s longest running physics experiment.
It was a flask with “pitch” or tar set up to allow it to “drip” — but very slowly.
In 87 years only a handful of drops have fallen.
The test was to prove that pitch was actually a liquid not a solid, although it shattered like a solid.

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