4. Iron, Crystals, and the Second Law

4.1 A Close Look at Real Iron

4.1.1 Microscopes

4.1.2 Metals are Crystals

4.1.3 Young's Modulus and Bonding

4.2 A Powerful Threesome

4.2.1 Be Dense!

4.2.2 Being Iron

4.3 The Second Law

4.3.1 Nirvana for Crystals

4.4 Inside a Perfect Crystal

4.4.1 Perfect Crystals and the Second Law

4.4.2 Moving Atoms Around

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© H. Föll (Iron, Steel and Swords script)