31–40 of 635 posts
And yet now, very few marbles, it would seem though that they are a lot smaller.
This theme comes up time and time again on HN, has anyone attempted to solve this?
It’s great to bring this problem up. But the focus on EVs is a distraction. > EVs tend to shed around 20 percent more from their tires due to their higher weight and high torque compared to traditional internal combustion engine-powered vehicles. It’s covered in this panel discussion on Fully Charged: https://youtu.be/LeHakmL6eEc?si=ebBAn8RSDhmmLfHI Fleet operators don’t see any significant difference in tire wear. E…
> EVs have higher torque but that doesn’t matter unless to drive like a mad-man Its not torque that matters. Its simply friction and normal force. And that's directly caused by weight. Tire Wear is something like (weight^4), so small increases in weight will have huge increases to wear-and-tear. --------- I think the real issue is that 3000lbs to 4500lbs, while a significant increase in tire wear, is still small comp…
Why can't the majority of the people walk to a store and the rest can be serviced by a smaller truck?
The solution to this problem and every other problem caused by driving is not driving. Period.
Not driving doesn't require any new technology, it just requires getting serious about alternatives to driving. (safe, separated bike ways, ebike and micromobility subsidies, rail, public transit, better urban design, less subsidies to cars and trucks of any kind etc etc - all of these have a self-reinforcing positive feedback loop that lead to even less driving)
Earlier quoted context omitted.
I worked on this indirectly for 4 as as part of a pdh at Ohio State. We have had the solution to this problem since then but because natural rubber is slightly less profitable for the companies (it lasts too long and it too high quality) they use synthetic rubber. Tire dust is a problem becuase we WANT it to be a problem the solution is available but it is impossible to get funding because the tire companies don't wa…
Can you link to this research? Is there any tire company using this technology? If the people cared we could either pay a premium for them, or regulate
As for the "technology" of natural rubber, yes again, ALL military aircraft tires are only natural rubber, people know, when it matters use ONLY natural rubber.
Again, we use choose to use and pollute with synthetic rubber because it is more profitable for the companies to sell us more tires that ware out more quickly. They know this and its on purpose.
What tools/technology exist today to remove microplastics from water? This theme comes up time and time again on HN, has anyone attempted to solve this?
It’s great to bring this problem up. But the focus on EVs is a distraction. > EVs tend to shed around 20 percent more from their tires due to their higher weight and high torque compared to traditional internal combustion engine-powered vehicles. It’s covered in this panel discussion on Fully Charged: https://youtu.be/LeHakmL6eEc?si=ebBAn8RSDhmmLfHI Fleet operators don’t see any significant difference in tire wear. E…
> EVs have higher torque but that doesn’t matter unless to drive like a mad-man Its not torque that matters. Its simply friction and normal force. And that's directly caused by weight. Tire Wear is something like (weight^4), so small increases in weight will have huge increases to wear-and-tear. --------- I think the real issue is that 3000lbs to 4500lbs, while a significant increase in tire wear, is still small comp…
https://www.systemiq.earth/wp-content/uploads/2020/07/Breaki...
It’s great to bring this problem up. But the focus on EVs is a distraction. > EVs tend to shed around 20 percent more from their tires due to their higher weight and high torque compared to traditional internal combustion engine-powered vehicles. It’s covered in this panel discussion on Fully Charged: https://youtu.be/LeHakmL6eEc?si=ebBAn8RSDhmmLfHI Fleet operators don’t see any significant difference in tire wear. E…
> EVs have higher torque but that doesn’t matter unless to drive like a mad-man Its not torque that matters. Its simply friction and normal force. And that's directly caused by weight. Tire Wear is something like (weight^4), so small increases in weight will have huge increases to wear-and-tear. --------- I think the real issue is that 3000lbs to 4500lbs, while a significant increase in tire wear, is still small comp…
It’s great to bring this problem up. But the focus on EVs is a distraction. > EVs tend to shed around 20 percent more from their tires due to their higher weight and high torque compared to traditional internal combustion engine-powered vehicles. It’s covered in this panel discussion on Fully Charged: https://youtu.be/LeHakmL6eEc?si=ebBAn8RSDhmmLfHI Fleet operators don’t see any significant difference in tire wear. E…
> EVs have higher torque but that doesn’t matter unless to drive like a mad-man Its not torque that matters. Its simply friction and normal force. And that's directly caused by weight. Tire Wear is something like (weight^4), so small increases in weight will have huge increases to wear-and-tear. --------- I think the real issue is that 3000lbs to 4500lbs, while a significant increase in tire wear, is still small comp…
Earlier quoted context omitted.
Would it be still cheaper if all tires are made from natural rubber. We shouldn't have old forests destroyed for rubber plantations.
There are two main working solutions that have ALREADY been used and proven to work since WWII. First: a fungal disease has wiped out ALL the rubber trees in south america, thats why we cant grow in it the Western hemisphere, a fungus. If we could grow it here we would and it would drop the price by A LOT. But, we already have a solution, a transgenic species that is resistant, nonsense Government regulation and moro…
We were (or at least I was) told in school that capitalism allowed our civilization to make and sell things we used to only dream about. And when I learned the truth, it was that capitalism was only concerned with how much to sell. If that meant making your products cheaper/worse/less durable on a creeping basis, then that's what the company did.
Capitalism itself is subject to enshittification that affects all products and services.