The Bubbleator was a large, bubble-shaped hydraulic

elevator An elevator or lift is a cable-assisted, hydraulic cylinder-assisted, or roller-track assisted machine that vertically transports people or freight between floors, levels, or decks of a building, vessel, or other structure. They ar ...

with transparent

acrylic glass Poly(methyl methacrylate) (PMMA) belongs to a group of materials called engineering plastics. It is a transparent thermoplastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Plexiglas, Acrylit ...

walls operated from an elevated chair built for the

1962 World's Fair The Century 21 Exposition (also known as the Seattle World's Fair) was a world's fair held April 21, 1962, to October 21, 1962, in Seattle, Washington, United States.Seattle Seattle ( ) is a port, seaport city on the West Coast of the United States. It is the county seat, seat of King County, Washington, King County, Washington (state), Washington. With a 2020 population of 737,015, it is the largest city in bo ...

. These transparent walls gave the illusion of looking through an actual 'soap bubble' by refracting light to obtain a rainbow-like effect for the riders inside. It was originally part of the Washington State Coliseum (now a sports venue known as

Climate Pledge Arena Climate Pledge Arena is a multi-purpose indoor arena in Seattle, Washington, United States. It is located north of Downtown Seattle in the entertainment complex known as Seattle Center, the site of the 1962 World's Fair, for which it was ...

), where it lifted 100 passengers at a time up one floor through a structure of interlocking

aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It h ...

cubes to the "World of Tomorrow" exhibit. T. C. Howard of Synergetics, Inc. designed the Bubbleator and the exhibit. After the fair, the Bubbleator was relocated to the Center House at

Seattle Center Seattle Center is an arts, educational, tourism and entertainment center in Seattle, Washington, United States. Spanning an area of 74 acres (30 ha), it was originally built for the 1962 World's Fair. Its landmark feature is the tall Space Need ...

. By 1984, it had been removed and put in storage to make way for the Seattle Children's Museum. It was sold to a private owner in

Des Moines, Washington Des Moines ( ) is a city in King County, Washington, United States. The population was 32,888 as of the 2020 census. The city is located on the east shore of Puget Sound, near the center of the Seattle metropolitan area. It is bordered by t ...

, who recycled the upper part of the dome into a

greenhouse A greenhouse (also called a glasshouse, or, if with sufficient heating, a hothouse) is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown.These ...

. The control chair, which had also been in private hands, was donated to the

Museum of History and Industry The Museum of History & Industry (MOHAI) is a history museum in the South Lake Union neighborhood of Seattle, Washington, United States. It is the largest private heritage organization in Washington state, maintaining a collection of nearly four ...

in 2005. While boarding the Bubbleator, passengers were commanded by an ethereal female voice to "Please move to the rear of the sphere", or the "Martian type" male elevator operator would say, "Step to the rear of the Sphere" in a creepy sci-fi type voice. The soundtrack for the Bubbleator was conducted by Attilio Mineo and released as ''Man in Space with Sounds.''

References

Century 21 Exposition History of Seattle Individual elevators Seattle Center {{Tech-stub