Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, Brain and Heart are composed of 73% water. Lungs are about 83% water. Skin contains 64% water. Muscles and kidneys are 79%. Bones roughly 31% Cymatics, from the Ancient Greek: κῦμα, meaning, “wave", is a subset of modal vibrational phenomena. ... The apparatus employed can be simple, such as the Chinese spouting bowl, in which copper handles are rubbed and cause the copper bottom elements to vibrate.