Vacuum Chamber and Aluminum Sphere (IMAGE)

University of California - Los Angeles

Vacuum Chamber and Aluminum Sphere

Caption

The researchers constructed a vacuum chamber, roughly the size of a soccer ball, in which the pressure was one-trillionth that of the atmosphere we normally breathe. An aluminum sphere roughly the size of a marble (center), functioned as a dense object to suppress the chameleon fields and allow the researchers to measure small forces.

Credit

Courtesy of Holger Müller

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