00:00A once-in-a-century miracle.
00:01The experiment with the phantom liquid.
00:03The story begins in Australia.
00:05A physicist named Thomas Parnell became fascinated by a mysterious black substance called pitch.
00:10And one question consumed him.
00:11Is it a solid or is it a liquid?
00:13And so the experiment began.
00:15But pitch is no ordinary substance.
00:17A single drop takes more than 10 years to fall.
00:19This was no ordinary experiment.
00:21It would become one of the most grueling endeavors in the history of science.
00:24Over the course of 97 years, scientists attempted again and again to witness the decisive moment.
00:29Yet no one, not a single person, had ever seen a drop fall with their own eyes.
00:33Then, in the 2000s, everything changed.
00:35A global, around-the-clock surveillance system was set up to monitor the experiment 24 hours a day.
00:40And it was officially recognized by Guinness World Records as the longest-running experiment in human history.
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