The scope of the materials engineer ranges from the "huge-scale" to the "tiny-scale". For example:
The Confederation Bridge that joins New Brunswick with PEI is a major accomplishment of Civil Engineers. Materials engineers were involved in designing the concrete and construction methods for this massive structure to ensure the bridge will last for a predicted 100 years and beyond.
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Snow Properties and Avalanche Initiation is also a part of Materials Engineering
Brick for Mars - The PEGG Nov 2001