measurement

How Does Your World Measure Up?

World-building is a key component of writing fiction, particularly in the genres of sci-fi and fantasy. That means you have to have culture, history, and everything else that comes with a real world underlying your story.

Including … measurement units?

Maybe not. Maybe your world is built enough off of ours that it makes sense to stick with the usual feet and inches, pounds and ounces. Or if your world is in a future where scientific reasonableness is king, so you’re all metric.

But what if that won’t work for your world?

My first novel was largely in an alternate dimension with some shared history, but mostly a huge divergence. And a very science-oriented society. In a particular situation, I needed to make a reference to a measurement of volts.

Volts were named for Alessandro Volta. A dude who didn’t exist in that dimension.

First thought: Oh, crap.

Second thought: Okay, what made-up units would make sense in this word I’ve created?

I considered how the society was fairly practical and straightforward in other naming practices, and I thought about what voltage means. In the end, I came up with a fake unit that seemed to fit both needs.

Have you ever thought about how many units are named after a person? Fahrenheit and Celsius for temperature. Volts, amperes, coulombs, and ohms for various aspects of electricity and charge. Newtons for force, pascals for pressure.

If you don’t need to worry about these things in your stories, you’re a lucky one. For the rest of us, make sure you think about a natural way for units to evolve in your world.

Have you invented units/measurements for one or more of your stories? How did you go about it?

Speak up:

6 comments

How Do You Measure Up?

I have a math-teacher confession. (Again.) It’s not something I’m proud of. Not something I like to admit.

I’m not very good at estimating measurements.

Oh, I’m okay at the small stuff, particularly with length. I can say, “This is about two inches,” or even, “That’s about fifteen centimeters.” But if you go much beyond something I can hold in my hands, I’m pretty hopeless.

This drove me nuts in driver’s ed. Rules like, “When parking on the street, you must be X feet from the corner,” were useless for me. Thirty feet, fifty feet, doesn’t matter. I have no mental gauge for a distance like that.

Weights are even worse. Give me something and ask me if it’s closer to five pounds or ten, and I’ll be straight-up guessing. I know the fifty-pound bags of salt are pretty close to the limit of what I can comfortably lug around, so if something else is close to that, my guesstimate will be okay.

You know what this all has in common? Experience.

I can estimate lengths of things smaller than a breadbox because I’ve done a lot of measuring with a 12-inch ruler. I can tell when things are close to that fifty-pound mark because lugging those salt bags down to the basement is a memorable experience. I don’t have a lot of experience measuring and knowing larger distances.

I bet if I played football, I’d have a pretty good feel for five yards vs. ten yards vs. twenty.

Except … I have students who play football and don’t know what a yard is.

*headdesk*

As much as I’m not great with measurement, it’s a much weaker area for many of my students. (Oh, if I could tell you how many times I’ve asked, “How many inches are in a foot?” or even, “How many months in a year?” and gotten blank stares!) Some of it’s a language issue, and some is that it hasn’t been prioritized in their previous years of math education. Mostly, it’s a combination of both.

So, students in some of my math classes will be attacking objects with rulers and yardsticks and tape measures and scales. I will throw lots of questions at them like, “If you were measuring the water to fill up a bathtub, would you use gallons or cups?” And I will hope some of it sinks in.

What mad measurement skills do you have? What areas trip you up? Any tips or tricks? I’d love to hear ’em.

Speak up:

2 comments