In group places an invention inside the wider family of devices it belongs to. Wikipedia traces how the telephone evolved until "convergence in communication services... giving rise to the smartphone, the dominant type of telephone in the world today," one device inside a long family line. This dimension gathers inventions that belong to the same wider device family.
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Main Engineering Branch Field Founding Era In Group
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Sources
1. Wikipedia: Engineering
WikipediaIntroduction, traditional disciplinesQuote, Introduction, traditional disciplines
The traditional disciplines of engineering are civil, mechanical, electrical, and chemical.
2. Wikipedia: Electrical engineering
WikipediaIntroduction, emergence as an occupationQuote, Introduction, emergence as an occupation
It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph.
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