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Martin began to make mobiles in the early 1950s. This one was described by him as 'an experiment with a linkage which hung and balanced from two points with a central point that could describe a variety of horizontal curves'. It was inspired by A.B. Kempe's lecture on linkages (1877), which Martin discovered while researching at the Science Museum. It overcomes the problem of pivoting rigid components together without stable suspension points.

September 2004