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At a given pressure gradient, for all channels with given area, that which maximises the steady flow Q steady has a circular cross-section. Consider flows starting from rest developing from a constant imposed pressure gradient: for all channels with given cross-sectional area, that which has the slowest approach to the steady flow is the circular disk… (More)

Combining results presented in two papers in this Monthly yields the following elementary result. Any line of best fit for the zeros of a polynomial is a line of best fit for its critical points. This note gives a generalization of results on cubic polynomials presented in [1]. Our notation will follow that paper. A line of best fit for a set of points in… (More)

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