[Pease Porridge]
What's All This Counting Stuff, Anyhow?
Bob Pease
ED Online ID #21085
May 7, 2009
Copyright © 2006 Penton Media, Inc., All rights reserved. Printing of this document is for personal use only.
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Once upon a time when I was about four years
old, my father went up the road to buy a couple of
piglets, and he took me along. We brought them home
to our little farm in a burlap bag in the back of our
pickup truck.
I guess I must have thought this was quite exciting,
because my mother thought I was overstimulated.
She sent me in to the living room to take a nap, even
though it was only 11 a.m. So, I lay quietly on the
couch and tried to get to sleep.
But after a half hour, I went in to see my mother in
the kitchen. I asked her: “What comes after 999?” She
explained, 1000. Okay. Since those days I have done
a lot of counting.
I counted the number of three-cent stamps it would
take to cover a square light-year. I counted the curves
on Page Mill Road (206) and on Mt. Hamilton Road
(430 up to the top) and on the back road from Weaverville
through Hayfork to Cummings (2206 with an old
VW bus without power steering).
I count a lot of things. Belches. Dead cars. As Lord
Kelvin observed, if you don’t measure something,
you don’t know scientifically what you have. The
same goes for counting.
COUNTING ON THE BENCH
I have seen some circuits that failed to work right
because we failed to measure and count correctly
the number of squares in a resistor—or a gate size. I
have also seen some circuits that worked beautifully
because we counted the squares wrong, but the wrong
number was actually just right! And when my friends
play cribbage, I comment, as they are pegging up,
“You guys count funny…”
My son recently mailed me an old Calvin and
Hobbes cartoon (see the figure). Well, Calvin was
right! Math is like magic. But it is useful magic, and
it’s simple enough for little kids to learn. And it’s
not just illogical.
We discussed that 4 = 1 + 1 + 1 + 1 = 1 + 3 = 3 + 1
= 2 + 2. That’s a good definition of 4, as well as 3 and
2 and 1. It is a useful definition, and a lot of our math
depends on a bunch of simple definitions like this.
Counting is, for sure, a lot easier in those Arabic
numerals than in Roman numerals. I’d hate to do long
division or multiplication with Roman numerals, or
even subtraction!
I also count switchbacks on trails. The ascent from
Yosemite’s floor to the top of the Falls takes 162
switchbacks, whereas if you go up by Mirror Lake,
there’s only 106. And I counted the stone steps on
the Annapurna Circuit, on the trail from Tatopaani
on the great Khali Gandaki River up over the pass at
Ghorapaani and down to Birethanti.
There are 8515 stone steps up and 9220 down. The
stones are nicely set and are called “Gurung Staircases.”
Pretty good trail! Good hard work with about
6000 feet of rise and fall.
Of course, while you’re counting, you usually need
to be in good practice to keep counting and not be
distracted by other things, like conversation. Don’t
forget to start counting again at the right place.
Also, you’ll want to have some “markers” to help
you keep your place. You wouldn’t want to forget if
you were at 360 or 340 or 460. I often use NSC part
numbers as a marker. “The LM360 is a fast comparator.”
That I can remember.
So counting is a very valuable function and we tend
to take it for granted, except when a little kid asks
provoking questions. Never a dull moment!
Comments invited! czar44@me.com —or:
R.A. Pease, 682 Miramar Avenue
San Francisco, CA 94112-1232
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