Not Just Bikes
An attempt to recreate the /r/NotJustBikes community on Lemmy. I'm just reserving the Community Name, other folks (for instance the /r/NotJustBikes mods?) are welcome to take over.
NOTE: This sublemmy (?) is in no way related to or affiliated with NotJustBikes, Jason Slaughter, etc.
#RULES
1. Be nice. Please.
I know it's the internet, but be nice. And report trolls & spammers.
2. No memes
No memes, image macros, or low-effort posts. These are easily upvoted, but they pollute the subreddit very quickly.
POSTING MEMES WILL RESULT IN A TEMPORARY BAN.
3. Stay on topic
Try to stick to posts and comments related to the themes of NJB videos, or content creation. Things like urban planning, mobility & transportation, social equity, Dutch culture, etc..
4. No Trolling
Go troll somewhere else. We don't need that shit here.
5. No comment screenshots
Please don't post screenshots of stupid comments as a post. We all know there are ignorant morons online, we don't need to bring even more attention to their stupid comments.
6. No vehicular cycling
I have no patience for advocates of vehicular cycling. You can talk about vehicular cycling, but if you promote it as an alternative to safe bike infrastructure, I will ban you. You can post that crap somewhere else.
7. No people being hit by cars/road violence
Do not show videos or pictures of people being hit by cars, or other road violence. We don't need to see that shit. We know cars are dangerous, and many people have bad memories of car crashes. Keep it out of this subreddit.
8. No tone policing
We don't need any more tone police. If you don't like the tone that Not Just Bike takes in his videos, there's a very easy solution: stop watching them.
9. No internet drama
Don't spread or promote drama over what has happened on the Internet. You're spending too much time online: go touch grass.
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Towards the end of the video he addresses the point that the optimum speed of cars is around 60(or I thought it was 70).
This argument doesn't apply here because that figure is for a car traveling at a constant speed on a straight, flat road with no wind. E.g. a freeway/motorway. In a city, a significant amount of the energy is used to speed up and slow down at intersections.
Remember the kinetic energy formula, Ek=1/2 mv^2 . That tells you that accelerating a car to twice the speed takes 4 times the energy, or in other words it takes 4 times as much fuel to get to 60 as it does to get to 30.
This extra energy to get up to speed is going to far outweigh any benefit from less rolling resistance at 60 compared to 30.
fwiw, Lemmy actually supports both subscript and superscript, though the syntax is a little weird if you're used to Reddit.
~text~is subscript,^text^is superscript. (Unfortunately support on mobile clients—even Jerboa, made by the official Lemmy devs—is rather lacking.)E~k~=1/2mv^2^
But yeah, that's a really good point. I wonder how long you'd have to be travelling at 60 km/h to make that extra acceleration worth it in terms of fuel efficiency.
As a separate question: people would probably often be willing to sacrifice their fuel efficiency if it meant substantially shorter travel times. I wonder how much this would actually work. On highways it's definitely going to be a huge factor, but on the sorts of inner-city stroads that are usually posted at 60 km/h, I suspect you'll probably arrive at most of the same red lights accelerating up to 40 km/h as someone getting all the way up to 60 would. Would be an interesting experiment to conduct.