slide-rule | reverse threading

i think it was $250. that is the number that sticks in my mind. the amount of money my sweet poppo spent on the family’s very first calculator. way back when.

now, $250 was a lot back then. it still is. but my dad wanted us to have this newfangled device with which we could add, subtract, multiply and divide to our heart’s content, sans paper and pencil. it was a pretty exciting time and we all felt inordinately lucky to be living in such a technological world. wow.

my big brother was the one who made an abacus for me. in searching through bins in the basement and the attic i was hoping to stumble upon it. but no abacus to be found. amazingly enough, i even knew how to use the abacus.

and then, it was, again, my brother who showed me how to use a slide-rule. he was a surveyor for a time, so it was a tool of his trade. and anything my brother used, i wanted to use. he was that kind of idolized big brother. i’ve come across several slide rules in boxes and pencil cases. i’d have to refresh to figure out how to use them. i’m just certain that my treasured high school math teacher would be proud were he to know how attached i still am to these pre-calculator devices.

the stick on the trail somehow brought all of this to mind. linking-thinking, my dear friend heidi calls it. as we approached it, it just simply screamed “number line” to me. it appeared that each little branch nub was placed exactly the same distance apart. it immediately brought me back to number lines i’ve created in the past…for history classes or for math or for one of those “describe your life” timeline projects that have you looking back and then looking ahead. plotting on the line the ponderous things that have happened in your life that have in turn impacted your life.

i stopped to take photographs of the stick and got lost in plot-my-life-on-the-number-line thoughts. i’ve been doing a lot of looking-back and this stick would come in handy as a visual.

somewhere on that stick it would show our first calculator. somewhere before that it would show the abacus and the slide-rules. somewhere later it would show a first computer. and then, subsequent computers, laptops, ipads, cellphones. it’s easy to place stuff on the number line.

what’s much harder to place is the impact of moments in your life. but for one decision, one meeting, one event, the rest of the number line would be entirely different. it’s profound.

in the way that – in elementary school – you would draw a curved line – to the right – under the number line to show addition or a curved line – to the left – under the number line to show subtraction, it is much harder to reflect – with a simple curved line – the entire impact one nub on the stick might have had on you. though one might try to reflect the way one nub informed the rest, it is nearly impossible to wrap all impact into a few curved lines.

in fact, the number line, the abacus, the slide-rule, the early-bird calculator – none of them can calculate all that.

standing on the trail, mid-photo-shoot with the stick, i realize that it is likely we cannot actually portray ourselves – our lives – on a number line. it occurs to me that – because life and heart and soul are like this – we are living many nubs concurrently – backward and forward – all at the same time. no nub stands alone. each is altered and informed by all the others.

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