A leader in this industry’s debt to the Waldorf Astoria owner caused his Wardenclyffe Tower to be blown up for scrap. Citizens of Schenectady legendarily came up with an extra $7,500 to lure a titan in this industry, who spent his later years searching for a domestic source of rubber in the Everglades. A company in this industry developed a two-part “stopper” product to fulfill a contract with the Chicago’s World Fair, which displayed its (*) “Egg of Columbus.” Tensions in this industry were raised by William Kemmler’s botched execution. A pioneer (10[1])of this industry ran an “Invention Factory” that contained early phonograph prototypes and backed a “direct” system (10[1])over his rival’s “alternating” design. For 10 points, George Westinghouse feuded in what industry’s “war of the currents” with Thomas Edison? ■END■