An experiment set up in 1927 by Professor Thomas Parnell of the University of Queensland in Brisbane, Australia, and still current in 2014 was designed to demonstrate what?
That some substances which appear solid are actually highly viscous fluids The substance chosen was pitch. It was allowed to settle for three years then the seal was broken to allow the pitch to drip. The eighth drop fell in 2000.
Robert Mallet, a Victorian geophysicist, engineer and inventor, conducted a controlled experiment on a beach in southern Ireland as part of his seminal work in studying what and creating the science of what?
