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and his dog's fur and became curious about how they worked. After  examining them under a microscope, he realised the possibility of  creating a new kind of fastener that worked in a similar  fashion, laying the foundations for the hook-and-pile hook-and-loop  fastener. % \cite[p. x]{roberts}  \end{itemize} 
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\item \textbf{Bridge}: These include reasoning techniques, such as  abductive inference (what might cause a clear patch in a petri  dish?); analogical reasoning (de Mestral constructed a target domain  from the source domain of burs burrs  hooked onto fabric); and conceptual blending (Kekul\'e, discoverer of the benzene ring structure, blended his knowledge of molecule structure with  his vision of a snake biting its tail). The bridge may also rely on  new social arrangements, such as the formation of cross-cultural