Technically the metric system is "the preferred system of weights and measures for United States trade and commerce" as per the Metric Conversion Act of 1975.
You're just also allowed to use lbs and feet and stuff and most people do.
The versions of imperial measurements the US uses are even defined in terms of metric units, so they're less a completely separate measurement system these days and more just a weird facade on top of metric, even.
Screw that, we'll make them use Metric. BY FORCE!
Yep, that's what Napoleon did...
Regan also never bothered to reinstate Imperial standards at the bureau of weights and measures (because it would have cost a small fortune). So our units are officially defined by the their metric counterpart. Legally speaking an inch is 2.54 centimeters.
And in the sciences and drug dealing and the military, we use metric exclusively.
But for some idiotic reason, construction engineers often use imperial units and I have no idea why. Like buildings are built in pounds and feet and stuff, with half inch bolts and 2x4 (ish) lumber and half inch plywood. It’s idiotic.
I don't generally defend imperial, but feet and inches are actually really useful in construction. Base 12 is easily divisible by 2, 4, and 3. You often need to divide architectural elements in thirds.
As a former structural engineer who lived on a Jobber 5 all day, that's still pretty niche overall. Easier because it's what your used to maybe, but outweighed by situations where it's not. Try doing trig with fractions and then tell me imperial is better.
Does it matter whether you punch 3/8 or .375 into a calculator? Don’t tell me you calculate stuff by hand…
Trig is literally the math where you start dividing a circle in fractions and doing the math in base 360.
What the hell are you talking about?
I'm talking about trig using feet and inches. You know, rise, run, slope... Have you ever used trig outside of school? I don't understand what you're confused about.
right now i use it for waves and reflections. that's all fractions and degrees. before it was machining and tbh for me that was faster to go to the book for the answers than calculate everything out.
truly trigonometry is a land of contrasts.
When I find a wood working video on YouTube from the states it blows my mind how anyone can not just adopt metric “This is 5” 4/57 and we need to cut it to 5” 5/45 and a half” bzzzzzzz.
I may be biased, but I think it kinda makes sense. All the fractions are really just powers of two:
One half
One quarter
One eighth
One sixteenth
One thirtysecond
etc.
Everyone focuses on why learning metric would be better in the first place, and they're right. No one has come up with a good argument for me to throw away all of my measuring tools, convert all my recipes and relearn an entirely new system when the system and stuff I have works for me now.
Ah nice, this should be a constructive dialogue between open minded and empathetic individuals.
grabs popcorn
A truly logic system would be entirely designed around a base-12 number system. But we were born with an imperfect set of 10 fingers and that doomed us.
Those aliens have 6 fingers. It's an absolutely ironic twist that their discussion on measuring systems is super illogical for them, and yet logical is the verbiage they use.
Care to elaborate on how base 12 would be better than base 10 in this case?
Basically it's because 12 is more divisible than 10. Factors of 10 are 1,2,5 and 10. 12 has 1,2,3,4,6 and 12. This gives more flexibility when discussing numbers. Our time is technically using base 12, which is why we can say quarter past 4 and it means a traditional whole number. That's the argument I've heard anyway
how about we all agree that the best system is american units with metric prefixes. After all it is obvious that it takes an hours to drive 318 kilofeet
In this thread: people bending over backwards to defend their insane, non-logical unit of measurement
Logical, mathematically convenient, but not practically convenient. Without a measuring tool, there's no good way to estimate anything besides a centimeter.
Every imperial unit of measure can be estimated whilst naked (but preferably clothed).
An inch is your distal thumb phalanx. A foot is your foot. A mile is, or was at one point, roughly 1,000 paces.
The weather can be estimated by going outside. Is it too hot? It's in the upper third of the 100 degree scale. Too cold? Lower third, might snow. Cool enough to fully dress, but not too cold, right in the middle.
A healthy, big person is about 200 lbs. A very small person is about 100 lbs.
Converting between these units is useful in science, which is why science uses metric. But you could live your entire life on earth and never need to know how many distal phanages are in 1,000 paces. It literally never comes up. Who cares?
It's why units are divided into fractions, rather than into a decimal system.
By the way, the only reason we use a base 10 numbering system in the first place is because we have ten fingers and it was easier for early mathematicians to count. But I digress.
If you're dividing a length of rope, and all you have is the rope, it's simple to divide it in half, and then half again, and then again in half. You could even divide into thirds, if you were feeling frisky. You just fold it over itself until the lengths are even. There are two friendly numbers that are difficult to do that with, though. Can you guess what they are? If you guessed 5 and 10, you nailed it, good job.
Same with piles of grain or hunks of beef or chunks of precious metals.
But what about units of volume, you ask? I don't have a part of my body that holds roughly 8 oz of fluid to pour out. No, for that you'll need a cup. Just a cup. Not a graduated cup with a bunch of little lines down the side. 1 cup. Or half a cup, or a third, or maybe a quarter cup. Again, easily divisible for easy measuring without any special tools.
But a gallon, you protest. A gallon is 16 cups! What the fuck is 16 cups good for? Why not 10 or 100, or create a decigallon for simple math? Because 16 can be divided in half 4 times. Measuring out portions of the whole is as simple as pouring out equal portions into similarly sized containers. Divisible numbers are easier to use without graduated equipment.
And that's why time is measured in 24 hours, each hour is 60 minutes, each minute is 60 seconds. There's a ton of history there, and we'll ignore for this discussion the inaccuracy of measuring a day or a year. If the metric system is entirely superior, why don't you demand we all switch to metric time? A year will still be roughly 365 days (again, setting aside the inaccuracy) but we could divide the day into 10 equal metric hours, or mours, and those mours into 100 metric minutes, or metrinutes, and then those metrinutes into 100 metric seconds, or meconds. 1 mecond would be 0.864 seconds, and a metrinute would be 1.44 minutes, which to most people would be an imperceptible difference in time. Hey, how many seconds is 1.44 minutes? You don't know without a calculator because we don't use metric for time, and it probably never bothered you once before now. What an insane, non-logical unit of measure time is.
Yes, metric let's us convert millimeters to kilometers, or helps us determine how many calories it take increase 1 cubic centimeter of water by 10 degrees kelvin. It helps with those things because the units are arbitrarily defined to make the math easier, not to make the measurement easier. But that's it, there's no additional sanity, no additional logic. It's easier to convert between units via math, because it was designed to be easier to convert between units via math. There are no additional benefits to the metric system.
It's not entirely without logic. Base 12 is actually better that base 10 for a start, as it allows for a lot more fractions that have clean representations, so 12 inches in a foot is fine. The next thing is that people seem to think we have all of these strange units with strange conversions, when in reality we have 3 units for short distances, and then a seperate unit for long distances. 12 inches in a foot, 3 feet in a yard, and then nobody cares how long a mile is in terms of feet or yards. Once you realize that the mile is not even really part of the same measuring system as inches, feet and yards, the weird conversion makes sense. We exclusively use miles to talk about long distances above 0.1 miles, and then yards are used below 500 yards (which has an overlap of 324 yards). And then for the logic, it is entirely based on actual human scale shit. A foot is called a foot because it is roughly the size of your foot. A yard is approximately how long one stride is. Saying something is 100 yards away means it is approximate 100 steps away. Obviously there will be a bit of variance for how accurate that will be for any given person (and children will have to base it off of an adult obviously), but because it is based more on human things it is more useful for measuring human scale things. It was designed to not use decimals or large numbers because humans don't comprehend those very well.
Yes very logical, much intuitive
I'll just leave this here: https://youtu.be/iJymKowx8cY
TLDW: metric is better because all the different kinds of units were designed to work together.
Where as imperial units developed organically, within specific trades/use cases. They're not all supposed to work together.
I use imperial because that's what I was raised with, but I recognize metric is better in many ways. My only gripe with metric is the gap in units between Centimeters and Meters. A foot is convenient size for most things.
The only thing I still like Fahrenheit for is temperature. There's a wider range for the human livable temperature, so you get more persision. For everything else metric all the way.
And yes, it's 100% my American brain can't figure it out in Celcius no matter how hard I try lmao. 10's are chill, 20's are nice, 30's sind heiß. But in the end, I end up thinking Fahrenheit and going from there every time.
I am not familiar with fahrenheit, but celsius and kelvin allow for decimals. You can have as much precision as you like
I'm going to blow your mind, then.
Look up the human body temperature in Fahrenheit.
Turns out all ways of measuring temperature are linear and equally accurate. All of them have decimals.
I hoped ypu would have noted the sarcasm in the tone of my message. Of course every system has decimals.
Nope! Your fault for making a bad joke. Make it more obvious for idiots next time time.
What makes you think Farenheit is more precise for "human liveable" temperatures?
The temperature is the same. Regardless of which unit you use to document it in.
Which is why I think any argument between Celsius and Fahrenheit is completely arbitrary.
Like, the temperature that water melts and boils is completely dependant on pressure. If I follow a recipe I'll use the temp they recommend. My computer's heart gauge uses Celsius. I don't need to know what it is in Fahrenheit to know if it's overheating.
Those aliens have 3 fingers. A decimal system to them is like a system based on 14, 196, 2744, 38416, ... would be like to us - probably worse than US Customary
There's no good way to predict what base they'd actually use for their numbers, but there's definitely nothing about 10 that makes it an obvious choice for an inter-species standard line the comic implies.
When my American friends insist that feet and inches is just easier for them, I just nod in agreement and give them measurements using rods, chains and furlongs as well. If you're going to go Imperial, you have to know 'em all. An acre is a chain by a furlong, totally logical as that would be 4x40 rods which is of course 43560 square feet. I guess it makes complete sense when your world is only a few furlongs across.
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