Combining Texts
Ideas for
'Metaphysics', 'Non-Monotonic Logic' and 'Chemistry'
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9 ideas
27. Natural Reality / D. Time / 3. Parts of Time / a. Beginning of time
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617
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It is hard to see how either time or movement could come into existence or be destroyed [Aristotle]
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27. Natural Reality / E. Cosmology / 3. The Beginning
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613
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Even if the world is caused by fate, mind and nature are still prior causes [Aristotle]
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620
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The first mover is necessary, and because it is necessary it is good [Aristotle]
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619
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Something which both moves and is moved is intermediate, so it follows that there must be an unmoved mover [Aristotle]
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27. Natural Reality / F. Chemistry / 1. Chemistry
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17483
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Water continuously changes, with new groupings of molecules [Hendry]
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17482
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Compounds can differ with the same collection of atoms, so structure matters too [Hendry]
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27. Natural Reality / F. Chemistry / 2. Modern Elements
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17477
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Defining elements by atomic number allowed atoms of an element to have different masses [Hendry]
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17476
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Elements survive chemical change, and are tracked to explain direction and properties [Hendry]
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27. Natural Reality / F. Chemistry / 3. Periodic Table
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17480
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Generally it is nuclear charge (not nuclear mass) which determines behaviour [Hendry]
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