if one or more bad are used to effect a double action, then those turning rest together to effect that rest
double_take is reaction. double_decomposition is chemical_reaction. reconsideration is reversal. double_replacement_reaction is double_decomposition. side_effect is consequence. double_object_alternation is alternation. side_effect is effect. every_action has equal_and_opposite_reaction double_stopping is stopping. double_damages is punitive_damages.