Smallest electric motor

According to Official Guinness Records,

The world’s smallest electric motor measures one nanometre across and consists of a single molecule of butyl methyl sulphide on a copper surface. The molecule spins under the influence of electric charge introduced by the tip of a scanning tunnelling microscope. This work was achieved by scientists at the Department of Chemistry, Tufts University, Massachusetts, USA, and announced in September 2011.

For a complete list of 2011 records, please visit 2011 Guinness Records in United States.

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