Cools too quickly and crystals have no time to form
When a molten material is rapidly cooled, the atoms do not have enough time to arrange into a regular lattice and are eventually frozen in a disordered but stable state.
Transparency comes from electronic structure
Ordinary glass absorbs less visible light, and light can pass through the material; after adding different metal oxides, the absorption range changes, and various colors will appear.
Glass can also be engineered
Processes such as tempering, lamination, chemical strengthening and glass-ceramics are changing the way cracks propagate, making glass more suitable for buildings, mobile phones and high-temperature equipment.
The explanation of the mechanism was especially helpful.
Looking forward to reading more about the engineering challenges.
This gave me a useful starting point for further research.
The structure is clear and the pacing works really well.
This is a wonderfully clear way to explain a complicated idea.
Saved this one for a deeper discussion with my classmates.
I had never thought about the material side of this problem before.
The examples make the science much easier to follow.