NOVELTY - Heat-activation hydrogen energy of water hydrogen by providing hydrogen activator(s) having an activation bore with heater element intermediate inlet and outlet ends of the activation bore; and activating hydrogen of atomized water in the activation bore by applying electricity from electrical source to heater element for electrical-resistance heating of the atomized water with the heater element for predetermined use of activated water hydrogen.    USE - The method is used for heat-activating hydrogen energy of water hydrogen for powering rotational, reaction-thrust and projectile-expulsion of the water engine.    ADVANTAGE - The inventive method is capable of providing water-hydrogen energy by electrically superheating atomized water in a hydrogen activator with electrical current generated from a portion of greater output of hydrogen-electron energy than input heating energy from output power of adaptations of the water engine for all atmospheric and space uses selectively.    DETAILED DESCRIPTION - Heat-activation hydrogen energy of water hydrogen involves providing hydrogen activator(s) (1) having an activation bore (2) with heater element (3) intermediate an inlet end (4) and an outlet end (5) of the activation bore; placing an atomizer (6) in fluid-inlet connection with the inlet end of the activation bore; placing an electrical lead (7) in electrical connection from an electrical source to the heater element; directing atomized water from the atomizer into fluid connection with the heater element of the activation bore; and activating hydrogen of the atomized water in the activation bore by applying electricity from the electrical source to the heater element for electrical-resistance heating of the atomized water with the heater element for predetermined use of activated water hydrogen. An INDEPENDENT CLAIM is also included for a water engine comprising the hydrogen activator(s) having the activation bore with the heater element positioned linearly intermediate the inlet end and the outlet end of the activation bore. The heater element is insulated electrically and thermally from an activator casing by element insulation encompassing the heater element circumferentially intermediate the heater element and the activator casing. The atomizer is in fluid-atomizing connection from the atomizer inlet to the inlet end of the activation bore. The electrical lead is in electrical connection from the electrical source to the heater element. The outlet end of the activation bore of the hydrogen activator is in fluid connection with use chamber(s) of a selected pressure-use mechanism.    DESCRIPTION OF DRAWING(S) - The figure is a partially cutaway plan view of a flow diagram of a water-engine method.    Hydrogen activator (1)    Activation bore (2)    Heater element (3)    Inlet end (4)    Outlet end (5)    Atomizer (6)    Electrical lead (7)