See also the curious case of James Tilly Mathews who in c.1810 believed "that a gang of criminals and spies skilled in "pneumatic chemistry" had taken up residence at London Wall in Moorfields (close to Bethlem) and were tormenting him by means of rays emitted by a machine called the "Air Loom". The torments induced by the rays included "Lobster-cracking", during which the circulation of the blood was prevented by a magnetic field..."
http://en.wikipedia.org/wiki/James_Tilly_Matthews#The_.22Air...
Well before the days of satellites, aluminum foil, and Major League Baseball.