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OCR - B
5. Rise and fall of the clockwork universe
5.1 Models and rules
- 5.1.1 Creatng models
- 5.1.2 Out into space
- 5.1.3 Our place in the universe
5.2 Mater
- 5.2.1 Mater: very simple
- 5.2.2 Mater: hot or cold