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The University of Queensland pitch drop experiment, demonstrating the viscosity of bitumen.

The pitch drop experiment is a long-term experiment that measures the flow of a piece of pitch over many years. Pitch is the name for any of a number of highly viscous liquids that appear solid, most commonly bitumen. At room temperature, tar pitch flows at a very low rate, taking several years to form a single drop.


Pitch drop experiment sections
Intro   University of Queensland experiment    Trinity College Dublin experiment   Experiment at Aberystwyth University in Wales   Demonstrations of Lord Kelvin   See also  References  External links  

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