This section is from the book "Applied Science For Metal Workers", by William H. Dooley. Also available from Amazon: Applied Science For Metal Workers.
When a carpenter bends the blade of his saw and releases it, the saw blade tends to return to its original position. This property is called elasticity.
A substance is said to be ductile when it can readily be extended or drawn out. Copper, because it possesses a high degree of ductility, can be drawn out into wire.
 
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