The Pitch Drop Experiment 

Intelligently Designed Experiments

In the 1980s, the European Journal of Physics described three experiments that had been continuing for decades. The newest was the pitch drop viscosity experiment at the University of Queensland (begun in 1927). Since then a single drop has fallen about every nine years. There is a pitch drop web site and live web cam. The oldest experiment is reputedly the Oxford University electric bell which began ringing in 1840; with the original battery still providing barely sufficient electro-chemical energy. The third experiment, the Beverly clock at the University of Otago, has been running without additional winding since 1864. Information on all three experiments can be found at the Annals of Improbable Research (AIR) website, where you can also subscribe to the treeware AIR or the e-mail mini-AIR.

pitch drop web site

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HotAIR - The Latest on Long-Running Experiments