Abstract: The present invention relates to an adapter for a formwork support structure comprising a formwork support of a first type, the adapter comprising a mount for positioning the adapter with respect to said formwork support of a first type, said mount supporting a formwork support of a second type. In one form, the mount positions the adapter with respect to a crown type formwork support, and the mount supports a bearer support portion.

Abstract: Fuel cell designs and techniques for converting chemical energy into electrical energy uses a fuel cell are disclosed. The designs and techniques include an anode to receive fuel, a cathode to receive oxygen, and an electrolyte chamber in the fuel cell, including an electrolyte medium, where the electrolyte medium includes an inorganic salt mixture in the fuel cell. The salt mixture includes pre-determined quantities of at least two salts chosen from a group consisting of ammonium trifluoromethanesulfonate, ammonium trifluoroacetate, and ammonium nitrate, to conduct charge from the anode to the cathode. The fuel cell includes an electrical circuit operatively coupled to the fuel cell to transport electrons from the cathode.