Discussion
The subject 'Nano-Technology' is an example of how knowledge grows by .................. .
Answer: A
Nano-technology is an example of growth by Fusion.
Ranganathan described several modes in which new subjects form. In fusion, two or more subjects merge so that each loses its separate identity in the new subject. Nanotechnology combines physics, chemistry, biology and engineering at the nanometre scale into a single field, and is the common example of fusion.
Fission is the splitting of a subject into narrower subjects, lamination the building of a subject by adding facets in layers, and loose assemblage the study of relations between subjects that keep their identity.
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