..., Obrego´n, Porfiriato, radio, state formation, technology, wireless. Palabras clave: Radiotransmisio´n, Carranza, D ´az, relaciones internacio- nales, frontera, Revolucio´n mexicana, Me´xico, modernidad, nacionalismo, Obrego´n, Porfiriato, radio, formacio´n del estado, tecnolog´ a, radiocomuni- caciones...

... of the dangers of aquifer depletion and profited from the business opportunities “Mexicanization” of groundwater pumping technology provided via Import Substitution Industrialization (ISI)—a conflict-of-interest which symbolized the tension between advancing techno-scientific knowledge of natural processes...