While most know Thomas Edison for his invention of the light bulb, his counterpart, George Westinghouse, is too often overlooked. Westinghouse, however, became known as one of the most prolific inventors and businessmen of the Industrial Revolution. This biography reveals the man whose teachers suspected was mentally disabled and who quit college after one semester, yet founded more than 60 different companies employing 50,000 people, and received 361 U.S. patents. He later fought the "Battle of the Currents" (AC vs. DC) with Thomas Edison and won. Westinghouse, with his engineers, provided power and light for the 1893 World's Columbian Exposition in Chicago. They harnessed the massive power of Niagara Falls and sent it over wires to light Buffalo and eventually the Northeast. His electric engines powered trains, and his air brakes stopped them. His scientific contributions forever changed the world.

Adolph Sutro was forever seeking challenges. Emigrating from Prussia to the U.S. at age 20, the California gold rush lured him west. At the Comstock Lode in Nevada, he conceived an idea for a tunnel to drain the hot water that made the mines perilous and inefficient. But he would have to overcome both physical obstacles and powerful opposition by the Bank of California to realize his vision. Back in San Francisco, Sutro bought one twelfth of the city, including the famous Cliff House perched over the Pacific Ocean. When it burned to cinders on Christmas Day, 1894, he built a massive, eight-story Victorian replacement. He used his expertise in tunneling and water solutions to create the world's largest enclosed swimming structure, the Sutro Baths-six glass-covered heated saltwater pools with capacity of 1,000 swimmers. Other challenges followed but Sutro was not invincible. After a two-year term as mayor of San Francisco, he succumbed to debilitating strokes which left him senile. His death in 1898 started disputes among his heirs-six children by his wife and two by his mistress-that lasted more than a decade.