this post was submitted on 04 Nov 2023
793 points (85.5% liked)
Fuck Cars
9659 readers
94 users here now
A place to discuss problems of car centric infrastructure or how it hurts us all. Let's explore the bad world of Cars!
Rules
1. Be Civil
You may not agree on ideas, but please do not be needlessly rude or insulting to other people in this community.
2. No hate speech
Don't discriminate or disparage people on the basis of sex, gender, race, ethnicity, nationality, religion, or sexuality.
3. Don't harass people
Don't follow people you disagree with into multiple threads or into PMs to insult, disparage, or otherwise attack them. And certainly don't doxx any non-public figures.
4. Stay on topic
This community is about cars, their externalities in society, car-dependency, and solutions to these.
5. No reposts
Do not repost content that has already been posted in this community.
Moderator discretion will be used to judge reports with regard to the above rules.
Posting Guidelines
In the absence of a flair system on lemmy yet, let’s try to make it easier to scan through posts by type in here by using tags:
- [meta] for discussions/suggestions about this community itself
- [article] for news articles
- [blog] for any blog-style content
- [video] for video resources
- [academic] for academic studies and sources
- [discussion] for text post questions, rants, and/or discussions
- [meme] for memes
- [image] for any non-meme images
- [misc] for anything that doesn’t fall cleanly into any of the other categories
Recommended communities:
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Why state a car's length in millimeters? Why state any length over a meter in millimeters?
Why doesn't the world use the decimeter? I don't think I've ever seen it used anywhere.
Using millimeters is pretty common in engineering.
So is using meters.
millimeters allow these numbers to be displayed as integers
Is that how numbers work, fascinating.
I've seen technical drawings where the dimension of something is 10000+ mm. At that point I feel like the whole utility of the metric system is moot.
I disagree with you. If you need five digits of precision, 12345 mm is precise and perfectly usable (and slightly less complex than 12,345 meters). Others might just say that the machine (or whatever) is twelve meters long. And all the math you need is removing three digits.
Yeah, I only use furlongs, rods, chains, and links in my calculations.
Don't forget hectares!
This guy gets it!
In countries that aren't America, we use centimetres and metres. But it was suggested that yanks are a bit thick and might be happier using woodworkers units of millimetres and metres.
No one uses deci anything, in my experience.
I've seen deciliters around some places for beverages.
Interesting, only place I have seen them is in science fiction books, and the occasional scifi themed bar.
We use deci-bells to measure sound volume
Good point well argued. I had not thought of them!
Builders, carpenters, plumbers etc all state any length up to 10m in mm
Its quite common around here to see height restrictions signed in mm. For example a car park entrance might have a sign labeled 1800mm max height
Because too many people don't understand sig figs
My decimeters be decimating
I'm curious to see how the arguments for using mm instead of dm varies from the argument for using imperial vs metric. You're right that there's way better units to use here, but I think mm is used out of convention. Which is the exact same reason that feet and miles are used, because everyone is used to it.