The science world might have tapped into something that is literally slower than molasses.
Researchers at Ireland's Trinity College set up a camera to capture a pitch drop that was 69 years in the making, proving once and for all that the hard black tar substance is actually a thick, viscous liquid.
The experiment was started in 1944 by a colleague of Nobel Prize winner Ernest Walton -- known for his atom-smashing experiments -- to prove that the black carbon substance contains liquid properties. Pitch is a form of tar once used for caulking boats and waterproofing containers.
Several lumps of pitch were placed into a funnel, which was placed into a jar and left in a cupboard for decades. Scientists at the school noticed a few weeks ago that a drip was starting to form, which prompted them to set up a camera to capture the impending drop.
U.S. & World
The Trinity College pitch drop, however, is not the longest running experiment of its kind. In 1929, the University of Queensland in Australia set up a pitch drop that is listed in the Guinness Book of World Records as the world's longest running lab experiment.