Electrical charges play a crucial role in the human body. The majority of biological processes are dependent on electrical ions traveling across the membranes of each of our body's cells, which send pulses of energy through the brain and nerves that resemble lightning. These electrical signs are conceivable, to some extent, due to a lopsidedness in electrical charges that exists on one or the other side of a cell layer. Until recently, scientists believed that the membrane was a key factor in this imbalance. However, when Stanford University researchers discovered that microdroplets of water and air can have similar unbalanced