From In the Kingdom of Ice: The Grand and Terrible Polar Voyage of the USS Jeannette, by Hampton Sides (Knopf Doubleday, 2014), Kindle pp. 55-57:
Throughout the first week of July 1876, the week of America’s hundredth birthday, the nation’s attentions were focused on Philadelphia. Not only was the City of Brotherly Love the place where the Declaration of Independence had been signed a century earlier; the city was hosting a world’s fair, which, on this sultry summer week, was drawing hundreds of thousands of visitors from around the globe. The Centennial Exhibition, host to thirty-seven nations, was situated on a campus of nearly four hundred acres in Fairmount Park, across the Schuylkill River from Philadelphia. It was America’s first world exposition, and by summer’s end nearly ten million people would have come to gawk at the nearly thirty thousand exhibits nestled inside the fair’s 250 pavilions and halls. The grounds were so sprawling that a newly devised elevated rail system—an early type of monorail—was used to shuttle crowds back and forth between two of the most popular buildings.
The crowds had come to be dazzled, and they were not disappointed. Among the many new creations on display were the Remington typewriter, an intricate stringed apparatus called a Calculating Machine, and a curious gizmo that a bearded Scotsman named Alexander Graham Bell was calling his “telephone.” (Bell would read from Hamlet’s soliloquy at one end of the hall, and attendees at the other could plainly hear the inventor’s voice issuing from a little speaker. “My God, it talks!” exclaimed one prominent visitor, Emperor Dom Pedro of Brazil.)
All summer the exposition had been the talk of the land. James Gordon Bennett had been to the fair several times, and he’d made sure his best reporters stayed in Philadelphia to work the grounds and cover the comings and goings of dignitaries from around the world—the lords and monarchs, the authors and artists, the scientists and railroad magnates. The Herald ran Centennial Exposition stories every day—in fact, by special arrangement, thousands of copies of Bennett’s paper were printed on an enormous press right on the grounds. Young entrepreneurs like George Westinghouse and George Eastman could be seen at the centennial, hungrily prowling the exhibits for ideas cross-fertilized with other ideas. The twenty-nine-year-old Thomas Edison was there, too, showcasing a strange little device called the electric pen. Another brilliant American inventor, Moses Farmer, drew crowds with his electric dynamo, which he used to power a set of artificial lights—called arc lamps—that blazed through the Philadelphia night.
There were other puzzlements and oddities. At the Japanese pavilion, a miraculously fast-growing pea plant called kudzu was unveiled to an unsuspecting Western world. Elsewhere, the crowds could gaze upon new works by Rodin, listen to concerts played on the world’s largest pipe organ, or marvel at the immense handheld torch of Frédéric-Auguste Bartholdi’s Lady Liberty (the rest of her was still under construction in France). It was here, at the Centennial Exhibition, that the American masses were introduced to a new condiment called Heinz ketchup, to a fizzy sassafras concoction sold under the name Hires Root Beer, and to the perfect novelty of a tropical fruit, served in foil with a fork, known as a banana.
BY FAR THE most popular attraction of the exposition, however, was Machinery Hall, a cavernous greenhouse structure that covered fourteen acres—nearly three times the square footage of St. Peter’s Basilica at Vatican City. The hall was a temple to machines of all kinds, and it thrummed and whirred and whined with the operation of countless pumps, turbines, generators, lathes, saws, and ingenious new fixtures of tool-and-die equipment. The floor was packed with aisle after aisle of inventions—most of them American, many of them revolutionary. There was, for example, the Line-Wolf Ammonia Compressor, a contraption for making ice. There was the Brayton Ready Motor, a practical early prototype of the internal combustion engine. There was a seven-thousand-pound pendulum clock manufactured by Seth Thomas that was calibrated to control twenty-six other clocks interspersed throughout the hall. There were new kinds of locomotive brakes, new kinds of elevators, and improved versions of the rotary cylinder press.
But the most extraordinary thing about Machinery Hall was the great motor that powered everything else. The Grand Central Engine, sometimes simply called the Centennial Steam Engine, was the largest engine in the world. Weighing more than 650 tons, constructed by the brilliant American engineer George Corliss, it supplied free steam power, via a network of underground shafts totaling a mile in length, to the more than eight thousand smaller machines on display throughout the hall.


