Normally, their physical characteristics make it relatively easy to distinguish trunk lines from other linkages. Here a is larger than b. //-->. The Tinkering Studio has uploaded 44074 photos to Flickr. Climate and forest data from Kendall State Forest, New South Wales, are provided as example input data for LINKAGES_RothC. CRANK AND SLIDER LINKAGE: The rods move forwards and backwards in slider. google_ad_height = 15; PAGE, . Linkage principles, types and mechanisms linkage principles.