Last week, a plot of land in North Portland felt a shake, but not one caused by an earthquake, but instead by a machine known as T-Rex. Researchers with Portland State University were simulating a minor quake to test a soil treatment that would fortify the ground from liquefaction. Arash Khosravifar and Diane Moug are both associate professors in Civil and Environmental Engineering at PSU. They both join us to share why their research is important and what they learned from the recent demonstration.