November 15, 2026

The Australian News

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World’s longest-running experiment almost 100 years old | ABC NEWS


Did you know the world’s longest-running experiment is sitting behind glass outside a lecture theatre at the University of Queensland?

The pitch drop experiment demonstrates the fluidity and extreme viscosity of pitch, a tar derivative that’s the world’s thickest known fluid.

Despite running for almost 100 years, no-one has ever seen the pitch drop, due to a series of unlucky events.

🎤: Stephen Clarke

#ABCNewsQld

Note: In most cases, our captions are auto-generated.

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