ANY educational course in mechanics should undoubtedly be based first of all on experiment. If such is the case, it is practically impossible for any student using “graphical methods” to make the wild ...

The graphical and Standard Methods for the determination of biochemical oxygen demand (BOD) were compared. Average means ± standard deviation of 228 ± 28 mg/L and 199 ± 25 mg/L for the Standard ...

This paper reviews the range of graphical methods available for use with nonparametric procedures, and provides examples of the use of many of the methods under the broad groupings: two-sample ...

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If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

IN company, I think, with other correspondents, I have misunderstood Mr. Larden's use of the words “analytical methods.” He alluded, it is true, to resolution and taking moments, but “analytical ...