The specific methanogenic activity (High school): a very useful test but still to be normalized. Re-publication of an article by Mario A. Rosé on Agronotizie
Continue reading “How to select the inoculum for the biogas plant – Part I”
“I often say that when you canto measure what you are talking about, and express it in numbers, thensai something of it; but if you can'tmeasure it, if you can't express it in numbers, your knowledge is meager and unsatisfactory; it can be the beginning of knowledge, but he will not have allowed you, in your mind, to advance in the progress ofscience, whatever the discipline”.
William Thomson, The Barons of Kelvin (Lesson on “Electrical units of measurement”, 3 May 1883)