EntityQ17113285· pop 10· linked from 10 articlesuseless machineSign in to savedevice which has a function but no direct purposeConnectionsTrammel of ArchimedesEntitycarEntityArtificial intelligenceConceptclockEntityelectronicsEntityInternational Standard Book NumberEntitymachineEntityrobotEntitycopyrightEntitytransistorEntitycapacitorEntityscience fictionEntitydiodeEntityArthur C. ClarkeEntityresistorEntityinternal combustion engineEntityvehicleEntitysteam engineEntityMassachusetts Institute of TechnologyEntitywindmillEntityCategoriesMachinesMechanical toysNovelty itemsOffice toysProducts introduced in the 1950s