181
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 15 Sep 2023
181 points (94.1% liked)
Ask Lemmy
26858 readers
722 users here now
A Fediverse community for open-ended, thought provoking questions
Please don't post about US Politics. If you need to do this, try !politicaldiscussion@lemmy.world
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
founded 1 year ago
MODERATORS
Why do you have so many measurement units for car engine power?
Like, with HP and kW is enough.
PS is Pferdestärke, which is just horsepower in German. I think CH is the same in French, and CV... Italian? So maybe the other ones also all mean HP. I don't know why they put all of them there, but maybe it's because since it's not a SI unit, there is no official abbreviation everyone knows.
Edit: Just looked it up and I was wrong, they are actually different units, even though horse related. Even HP (747.7 W) and PS (735.5 W) are slightly different. What a mess, that's why we need SI units.
With the inevitable arrival of electric cars, i bet that [kW] will be the new standard for engine power.
They already are.
The same way food packaging must mention the calorie content in joules and kcal is optional, cars have to be advertised with watt.
It has been for a while, horsepower is a legacy unit. Taxes and whatever are based on the kW value.
Taxes?
In some countries, your yearly car registration taxes are proportional to how much horsepower and pollution it generates.
We can only hope. A unifying measurement is the first start to cross cultural understanding and appreciation!
Well, I just ended up looking up horse power. So there's metric horse power, mechanical horse power, brake horse power. Most of the ones in your picture are some kind of horse power.
https://en.wikipedia.org/wiki/Horsepower