Pitch-Drop Worse Than Watching Paint Dry
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Researchers at Trinity College Dublin have some long awaited test results: After 69 years, they have captured on video a drop of pitch, also known as bitumen or asphalt. The experiment proves pitch is a liquid.
Transcript
RENEE MONTAGNE, HOST:
Good morning. I'm Renee Montagne. Even if you have been bored watching paint dry or grass grow or water boil, you have nothing on these scientists. An experiment that began in 1944 at Trinity College in Ireland just now has a definitive result - to test whether a thick substance called pitch flowed and dripped. A funnel with the stuff was placed over a jar. Seventy years later students saw a drip forming, set up a camera, and witnessed the drip drop. It's MORNING EDITION. Transcript provided by NPR, Copyright NPR.
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