What specific application did Joseph Swan have in mind for his early carbonized fibers?
Answer
Filaments for electric light bulbs
Joseph Swan pioneered the use of carbonized cellulose fibers specifically to serve as filaments within early electric light bulbs. This application relied on the fiber's ability to glow when electrified. Unlike modern structural carbon fibers, which are engineered for immense strength and stiffness, Swan's fibers were designed for their electrical and illumination properties in the late 19th century.
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