Robert Edward Grant on Instagram: "Cymatics is the study of visible sound and vibration, often demonstrated through the use of a cymatics machine. When sound waves are introduced to a medium, such as water or sand, the vibrations can cause geometric patterns to form. One of the most striking patterns that can be observed through cymatics is the hexagonal pattern. Hexagonal patterns are formed when the frequency of the sound waves is such that the wavelengths of the waves fit perfectly within the