Labels:text | screenshot | font OCR: to the action of wind striking a mountain peak, illustrated at the bottom of the page. B Three points may be made about this discussion as a whole: First, Leonardo is looking for ways to describe rates of change for two variables. His method of quantification is rooted in geometric ratios, not absolute units of measurement. Second the underlying scheme for his structural analogy of air and water is the four elements. And third, his accounts of the behavior of particles suspended in a medium were unprecedented;
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