Sailboarding at the Summer Olympics See List of Olympic medalists in sailing#Sailboard class. Olympic sailboarders are included in . Sailboarding at the Summer Olympics Sailboarding or Windsurfing has been one of the Olympic sailing events at the Summer Olympics since 1984 for men and 1992 for women. All sailors use the same One Design boards, daggerboards, fins and sails. The equipment is chosen to allow racing in a wide range of sailing conditions, as during the Olympic Games events must take place as scheduled whether or not there is enough wind for planing. Multiple medal winners include Alessandra Sensini and Barbara Kendall with three medals;
Activity coefficient discussed in the literature, and at least one author presents a definition of single ion activity in terms of purely thermodynamic quantities and proposes a method of measuring single ion activity coefficients based on purely thermodynamic processes. Activity coefficients may be determined experimentally by making measurements on non-ideal mixtures. Use may be made of Raoult's law or Henry's law to provide a value for an ideal mixture against which the experimental value may be compared to obtain the activity coefficient. Other colligative properties, such as osmotic pressure may also be used. Activity coefficients can be determined by radiochemical methods. Activity