Gold Rush Alaska II

I was getting ready for the premier of Gold Rush Alaska season two and became mindful of several industrial applications of chemical engineering fluid mechanics. On an episode in season one the crew uses a device called a wave table. The wave table pulsates at a specific frequency that create standing waves and the standing waves separate black sand from gold particles. The standing waves separate the gold and black sand based on the density of the materials. Gold is 18 times more dense than water.