Simanaitis Says

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Category Archives: Sci-Tech

SST CONCORDE REDUX

IT’S NO SURPRISE that a 9949-word article would teach me more about the SST Concorde. The historic supersonic transport had already appeared twice here at SimanaitisSays: “Concorde vs QE2,” May … Continue reading

July 10, 2020 · 2 Comments

IT SEEMS LIKE AN INFINITY… AND SO IT IS: ∞

IN MY CONTINUING exploration of math symbols, what better one to examine these days than ∞, the symbol for infinity. Here are tidbits on its definition, origin, and modern uses. … Continue reading

June 26, 2020 · Leave a comment

GOODBYE, MOORE’S LAW. HELLO TO THE TOP

IN 1975, INTEL founder Gordon Moore predicted that the number of transistors in a semiconductor would double every two years. Moore’s Law, as it came to be known, held true … Continue reading

June 18, 2020 · Leave a comment

GLOBAL TRUTHS AND THINGS TO PONDER

YESTERDAY’S CELEBRATION OF global—and extraglobal—adventurer Kathy Sullivan got me thinking about planet Earth and its physical extremes, its heights, depths, and shape. Here are tidbits gleaned from a variety of … Continue reading

June 13, 2020 · 2 Comments

CONNECT THE DOTS: LEAD, BALLOONS, PENCIL, NAPOLEON BONAPARTE

THIS CONNECT-THE-DOTS has an easy solution: Nicolas-Jacques Conté. He was a French polymath who gave Napoleon’s army the first significant use of aircraft and he also perfected the lead pencil … Continue reading

June 6, 2020 · 1 Comment

A GLIMPSE AT SIR MODELING PART 2

YESTERDAY IN PART 1, tidbits on epidemic modeling were offered, based on Paul Taylor’s “Susceptible, Infectious, Recovered,” London Review of Books, May 7, 2020. Today in Part 2, we see … Continue reading

May 31, 2020 · Leave a comment

A GLIMPSE AT SIR MODELING PART 1

AN “SIR” MODEL (as in S.I.R.) is a mathematical simulation of an epidemic. In full application, the model incorporates extremely detailed assessments of an epidemic’s factors. However, in “Susceptible, Infectious, … Continue reading

May 30, 2020 · 1 Comment

CELEBRATING EN HEDU’ANA

THE EARLIEST KNOWN poet, variously, En hedu’ana, Enheduanna, Sumerian 𒂗𒃶𒌌𒀭𒈾, flourished in the 23rd century B.C. I think of her as a Mesopotamian William Shakespeare, Johannes Kepler, and Emily Dickinson. … Continue reading

May 29, 2020 · 2 Comments

BEHIND THE CURVE

SECOND GUESSING IS valuable only if it affects future actions. We can hope this occurs following an assessment in Science, May 8, 2020, published by the American Association for the … Continue reading

May 24, 2020 · Leave a comment

ZEPPE VS TRIPPE—YOU READ IT HERE FIRST, SORT OF

I’M LOOKING forward to reading Alexander Rose’s Empires of the Sky—Zeppelins, Airplanes, and Two Men’s Epic Duel to Rule the World. This is, at least in part, to confirm things … Continue reading

May 20, 2020 · Leave a comment