New Zealand musician Nigel Stanford took various kinds of matter to demonstrate cymatics, the science of visualizing audio frequencies. In one of the examples, he takes a Chladni Plate – sand-covered thin metal surface attached to the top of a speaker – and plays different audio frequencies on a keyboard to move sand into mind-bending patterns. He also uses a vodka-filled petri dish taped to a speaker for playing audio frequencies of 50Hz and 100Hz to form standing waves in the liquid. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one of 7 Mars mysteries that will boggle your mind.