Exploring Materials Engineering
www.engr.sjsu.edu/WofMatE/
A brief introduction to materials engineering, plus relevant links to take your interest further – from San Jose State University in California.

Materials by Design
www.mse.cornell.edu/engri111
Emphasises the importance of materials in everyday life through a series of real-life examples. Actually an advert for a Cornell University (US) engineering course, but still illuminating.

Tetrahedral Puzzles
www2.geom.umn.edu/scienceu/geometry/articles/tetrapuzzles
If you want a challenge, try this from the Science U website – a look at how tetrahedra (the strong crystalline forms into which metal is transformed when crushed) can be created through geometry.

Tetrahedral
www.tannerm.com/AnimatedAtoms/tetrahedral.htm
Watch a tetrahedral crystal rotate in space on the Animated Atoms site.

Al-jon Car Crushers
www.aljon.com/car.htm
See what professionally made car crushers really look like. These are produced by the company owned by Scrapheap judge Jon Kneen.

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