Material class sorts technology materials by their basic physical category, such as a metal, an alloy or a polymer. Wikipedia defines stainless steel as "an iron-based alloy that contains chromium, making it resistant to rust and corrosion," a specific class distinct from a pure metal or a ceramic. This dimension groups materials that belong to the same basic material class.
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Main Engineering Branch Field Founding Era Metal
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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: Aerospace engineering
WikipediaHistory, 1958 first definitionQuote, History, 1958 first definition
The first definition of aerospace engineering appeared in February 1958, considering the Earth's atmosphere and outer space as a single realm.
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