PHI 31 Lecture Notes - Lecture 3: Physical Chemistry, Vise, Scale Model
27 Sep 2016
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Document Summary
Physical chemistry applied to biology: taking x-ray pictures of crystallized dna. Making models theoretical models, analog models and scale models. Models: theoretical model (or structure) of dna is what these concrete visual representations have in common. Because linus pauling found a protein with an alpha helix spiral structure. Maybe dna has a spiral staircase 2: steps all equal in with and there is a constant curvature. Scale model (francis crick and james watson. A theoretical hypothesis is a claim about the fit of model and world. Real world phenomenon means some aspect of the physical world and its behavior (as opposed to the abstract realm of numbers, symbols and concepts. ) Model" can mean something physical, like watson and crick"s dna model, or something abstract. A theoretical model is an abstract structure that the concrete physical model shares and indicates. Model: a key concept of the model-based view: theoretical models are representations that are:
