Experiments and Observations on Electricity

Benjamin Franklin's work on electricity, detailed in his book Experiments and Observations on Electricity, significantly advanced the understanding of this phenomenon. He proposed that electricity is a single "fluid" with positive and negative charges, rather than two separate fluids. Franklin also introduced key terminology still used today, such as "conductor" and "charge." His experiments led to the crucial principle of the law of conservation of charge, stating that positive and negative charges must always occur in equal amounts. He also distinguished between insulators and conductors and invented a battery for storing electrical charges.12