tumbledry

Pitch drop experiment

Pitch drop experiment - World’s longest lab experiment: since 1927 - it measures how slowly pitch (tar) will drip out of a funnel. “The eighth drop fell on 28 November 2000, allowing experimenters to calculate that the pitch has a viscosity approximately 100 billion times that of water.”

1 comment left

Comments

Nils

How has the human race lived without this vital piece of information?

Brief Notes Nearby