Most everyone in math knows these tricks — here’s a summary of techniques used to make quick mental calculations using averages. In school, I have 8 exam scores; what’s my average? 90 92 88 95 97 81 85 100 ~~~ Guess maybe 90, then mentally calculate the running residual sum using two or three numbers […]
Beam Deflections Jun 2022
Lucky Me Jun 2022
Growing Up At our house: We had newspapers, a couple magazines (*), a few religious books, and a set of World Book [encyclopedias]. My brother and I read the hell out of those encyclopedias. I say this broadened our interests but I also say we developed our innate interests. We all made [regular trips to […]
Celebrating 5 years for this Blog June 2022
Constructive Comments Jun 2022
Environmental Jun 2022
Antibiotic Resistance Jun 2022
Something(s) I never knew May 2022
Poetry May 2022
Posted in memory of Freda Laura Ozio [6th grade teacher at Groves Elementary, 1961]. She often read poetry to us after lunch. Surprising what one can learn when left to the whim of the teacher. https://ancestors.familysearch.org/en/LRN7-35V/freda-laura-hays-1917-2007
Pipe Stress Calculus May 2022
More Detail Imagine this elementary problem in pipe stress: design an otherwise straight run of pipe in a pipe rack utilizing an ‘expansion loop’, Now, minimize the size of the loop. This problem presents two independent variables (length and width) and one objective, minimizing overall pipe length. There are likely a handful of loop sizes that […]
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