<P> The electrotachyscope of Ottomar Anschütz was demonstrated, which used a Geissler tube to project the illusion of moving images . Louis Comfort Tiffany made his reputation with a stunning chapel designed and built for the Exposition . This chapel has been carefully reconstructed and restored . It can be seen in at the Charles Hosmer Morse Museum of American Art . </P> <P> Architect Kirtland Cutter's Idaho Building, a rustic log construction, was a popular favorite, visited by an estimated 18 million people . The building's design and interior furnishings were a major precursor of the Arts and Crafts movement . </P> <P> Among the other attractions at the fair, several products that are well known today were introduced . These products included Juicy Fruit Gum, Cream of Wheat, and Pabst Blue Ribbon beer, among many others . </P> <P> There was an Anthropology Building at the World's Fair . Nearby, "The Cliff Dwellers" featured a rock and timber structure that was painted to recreate Battle Rock Mountain in Colorado, a stylized recreation of American Indian cliff dwelling with pottery, weapons and other relics on display . There was also an Eskimo display . There were also birch bark wigwams of the Penobscot tribe . </P>

Who powered the world fair in 1893 and were was it located and in what month