this post was submitted on 09 Sep 2025
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[–] philosloppy@lemmy.world 19 points 10 hours ago* (last edited 10 hours ago)

the only thing more aggravating than using imperial is having to listen to all the complaining about how metric is better. We get it, bro; it's out of our control at this point

[–] merc@sh.itjust.works 14 points 10 hours ago* (last edited 10 hours ago) (9 children)

My 2 main annoyances with the metric system:

First: The SI unit for mass is the kilogram. That's fucking stupid. A kilogram is 1000 grams, the base unit for something can't be "1000 of this other thing". Because the kilogram is the SI unit for mass, that means that a gram is, by definition, 1/1000th of a kilogram. The stupidity, it burns!

The second one isn't really an issue with the metric system, it's more when people are almost using the metric system then fuck it up, like the "Watt Hour" for measuring energy use. You know, there's already a way of measuring energy use: the "Watt Second", also known as "The Joule"

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[–] CAVOK@lemmy.world 81 points 14 hours ago (3 children)

“In metric, one milliliter of water occupies one cubic centimeter, weighs one gram, and requires one calorie of energy to heat up by one degree centigrade—which is 1 percent of the difference between its freezing point and its boiling point. An amount of hydrogen weighing the same amount has exactly one mole of atoms in it. Whereas in the American system, the answer to ‘How much energy does it take to boil a room-temperature gallon of water?’ is ‘Go fuck yourself,’ because you can’t directly relate any of those quantities.” ― Josh Bazell, Wild Thing

"High. You put the stove on high."

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[–] Mobiuthuselah@mander.xyz 7 points 10 hours ago

I use both in my wood shop. Sometimes it's easier to lay things out in metric or divide numbers, but other times it's easier to remember an imperial number to go make a cut.

[–] UnwrittenProtagonist@lemmyusa.com 42 points 15 hours ago

"Because we are free men, we will be free to measure liquids in liters and milliliters... but not all liquids, only soda, wine, and alcohol because for milk and paint we will use gallons, pints, and quarts, god willing"

"How many liters are in a gallon, sir?" "Nobody knows."

"Why not use meters and kilometers?" "We sill, soldier. But only in certain unpopular sports like track and swimming."

[–] cristo@lemmy.world 7 points 11 hours ago

What about a nautical mile?

[–] MystikIncarnate@lemmy.ca 8 points 12 hours ago (6 children)

All units of measure are abstract.

I like metric because it's structured around an abstract amount. Even something like Celsius is pretty abstract, because the freezing and boiling point of water changes depending on the atmospheric pressure. The measure of a second? Why is a second, 1 second long? Why is it 1/60th of 1/60th of 1/24th of a day? There's other stuff based on seconds too, like Hertz, which is literally "cycles per second"

I like to think about how abstract these things are, because if we were to ever try to communicate with a truly alien race, we couldn't really use numbers, because their base numbering system would be different than ours, their symbols for numbers would be different, their entire understanding of math and how to calculate stuff could be wildly different, possibly because they understand things we do not. We couldn't even say to them to communicate on a specific frequency of EM, because that frequency is based on Hertz, which is based on seconds, which is based on ????? IDFK (neither would they). We base everything we know on the world around us, and that's entirely unique to earth. We make so many assumptions about how things are because we've only ever experienced life on this planet.

The only thing that kind of makes sense is how many days of the year there are, because it's based on solid science about our solar system. It's still unique to earth, but at least it makes sense on a larger scale. Everything else? Who the hell knows. Why is a meter as long as it is? Who defined this? Why? What abstract Earth-based thing was this based on that other societies of individuals would have no point of reference to relate to?

It's wild we've made it this far, to be honest.

Anyways, I kind of got sidetracked... I guess all I'm really trying to say is that metric makes more sense than whatever the USA is doing. Even if it's just as abstract in its conception.

[–] WolfLink@sh.itjust.works 6 points 9 hours ago (1 children)

their base numbering system would be different than ours, their symbols for numbers would be different, their entire understanding of math and how to calculate stuff could be wildly different

The neat thing about math is it’s built upon universal truths that exist independently of how you describe them. 1+1=2 regardless of how you represent those numbers. Even among humans we have plenty of different ways of describing numbers.

Also, the best thing about science is that physics works the way it does regardless of how you describe it. An atom of hydrogen will always have the same spectral peaks, regardless of what units you describe those peaks in.

It’s these kinds of things we consider when trying to communicate with aliens. Take a look at:

https://en.wikipedia.org/wiki/Pioneer_plaque

https://en.wikipedia.org/wiki/Voyager_Golden_Record

https://en.wikipedia.org/wiki/Arecibo_message

These messages will probably never be received, even if there is intelligent life out there. But if something intelligent does find these messages, they will probably determine they are artificial, and hopefully manage to decode some of it.

[–] MystikIncarnate@lemmy.ca 1 points 7 hours ago

See, this is all fascinating for me. I love this stuff.

It's also a good exercise in recognizing the assumptions we make every day. I'm trying to get to a point where I can articulate my thoughts and I don't have to struggle through the curse of knowledge.

[–] TheOakTree@lemmy.zip 3 points 10 hours ago (1 children)

I think one useful comparison would be to convert their measurement of the speed of light to our measurement and vice versa. They will use different units of distance and time, but the values themselves will be proportional unless they live in a black hole.

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[–] Tikiporch@lemmy.world 7 points 13 hours ago* (last edited 13 hours ago) (1 children)

Me watching a BBC TV show: "The suspect's home is five miles away."

shocked pikachu

[–] bignate31@lemmy.world 6 points 12 hours ago (1 children)

there's a very important video on the measurement rules in the UK, if you haven't seen it: https://www.instagram.com/reel/DNh9z3IzG8t/

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[–] kamen@lemmy.world 30 points 18 hours ago (18 children)

The only positive thing I see about imperial is that things are easily divisible by 3 and 6, but that's about it. Then again, if doing the same with metric, you're usually fine rounding to the nearest millimetre, and if that isn't accurate enough, it's probably not supposed to be done by hand anyway.

[–] captain_aggravated@sh.itjust.works 2 points 9 hours ago (1 children)

I've banged on about this at length before. I prefer woodworking in inches because I have to divide by 3 and 4 a lot more often than divide by 5. It turns out that the fractional inch system evolved alongside woodworking for a very long time and it solves a lot of the problems woodworkers actually face...as long as you're not a European scraping in the dirt for something to feel superior about.

[–] bryndos@fedia.io 1 points 7 hours ago (1 children)

I do woodworking a bit too, but I normally just do the slanty ruler/tape trick to divide any straight parallel face into n equal lengths. I hate all forms of mental arithmetic; I also avoid measuring as much as possible too. Maybe that's why everything i make is so shit.

I guess if you're mass producing things you can't just manually mark off each and every part though - but even then I'd probably want to work to a template rather than to measure.

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[–] prole@lemmy.blahaj.zone 14 points 16 hours ago* (last edited 16 hours ago) (10 children)

Base 12 is easily divisible by 2, 3, 4, 6 and 12

5,280 ft in a mile is fucking nonsense though

[–] bryndos@fedia.io 2 points 7 hours ago

I think a mile is specified in terms of 'chains' not really feet or yards. Feet and yards are meant for measuring smaller stuff, like the size of a foot, or a courtyard.

The 'chain' was a specific surveyors tool for measuring larger land areas. I imagine defined to be a length of physical chain practically manageable by the surveyor - probably pre-dating optical / triangulation methods before lenses got cheap.

I think an acre was then defined as 10 square chains or something.

But go back in time far enough and different jurisdictions have different lengths of standard chain, so different miles and acres derived from it. But it doesn't really matter because if you were buying land in Scotland, then you'd probably want to use a Scottish surveyor and his big long chain.

The nautical mile is then a whole other kettle of fish.

[–] chaonaut@lemmy.4d2.org 2 points 10 hours ago* (last edited 9 hours ago) (1 children)

Because there's a extra system of measurement change hiding in the middle. The Inches, Feet and Yards system (with the familiar 12:1 and 3:1 ratios we know and love), and Rods, Chains, Furlongs and Miles system. Their conversation rates are generally "nice", with ratios of 4 rods : 1 chain, 10 chains : 1 furlong, and 8 furlongs : 1 mile.

So where do we get 5,280 with prime factors of 2^5, 3, 5 and 11? Because a chain is 22 yards long. Why? Because somewhere along the line, inches, feet and yards went to a smaller standard, and the nice round 5 yards per rods became 5 and 1/2 yards per rod. Instead of a mile containing 4,800 feet (with quarters, twelfths and hundredths of miles all being nice round numbers of feet), it contained an extra 480 feet that were 1/11th smaller than the old feet.

The fun one is a nautical mile. Which is 6076.12 feet. How'd we get there? A nautical mile is equal to a minute of latitude, which happens to be just a bit bigger but on the order of magnitude of most "miles" to include the US statute mile.

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[–] nexguy@lemmy.world 13 points 16 hours ago

Just remember God giving you a single grain of sand. "One thou sand".

Not a easy to remember as 5 tomatoes.

[–] hperrin@lemmy.ca 140 points 23 hours ago (37 children)

I’m always disappointed that megameter isn't a common word. People will say “one thousand kilometers” instead of just “one megameter”.

[–] Klear@quokk.au 38 points 21 hours ago (3 children)

I'm a fan of light nanosecond, which works out to roughly 30 cm.

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[–] Octavio@lemmy.world 9 points 15 hours ago (11 children)

Fair, but I lived in Denver for 26 years. I will never forget the number of feet in a mile. 😂

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[–] angrystego@lemmy.world 2 points 11 hours ago* (last edited 11 hours ago) (1 children)

It's not helpful for us seriously distracted people. To remember a number, I must remember a smaller number. Damn, how many was it? Three tomatoes? Eight tomatoes?

[–] madjo@feddit.nl 2 points 10 hours ago

Was it even tomatoes? Maybe it was potatoes?

[–] antler@feddit.online 5 points 14 hours ago (4 children)

And to remember the number of yards in a mile: 1 San Francisco

One-seven-six-oh

[–] pressanykeynow@lemmy.world 3 points 11 hours ago (1 children)

At first I thought that's how Americans measure it - in San Franciscos. But given how "San Francisco" doesn’t sound like "One seven six oh" I'm not sure if they don't.

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