Lesson 3: Nature's Powers and Natural Kinds



Modeling -- pp. 31-34 on modeling various natures; pp. 134-135 on human cognitive powers; pp. 180-185 on human powers in operation; pp. 38-45 on the elements; pp. 45-73 on modeling inorganic natures.

Elements -- sec. 24 on sensation and perception; sec. 25 on intellection; secs. 26-27 on appetition and sensitive appetites; sec. 28 on volition; sec. 29 on man; sec. 22 on life and soul.


1. Identify the basic powers found in human nature. How may they be represented in a stimulus-response model? 

2. How are protomatter and natural form represented in the powers model of an inorganic nature? 

3. Compare the Aristotelian model of an inorganic nature with that of the modern physicist. 

4. How can the Bohr model of the atom cast light on the function of the natural form in inorganic processes? 

5. Contrast the modern chemist's explanation of chemical combination with that of the natural philosopher. 

6. Contrast the modern physicist's explanation of radioactivity with that of the natural philosopher.

Lesson 3 Figures:


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