Why Palladium Is Suddenly a More Precious Metal
bloomberg.com
bloomberg.com
One of the main reasons for their interest was the fact that this new catalytic converter used 30% less palladium than the next leading product.
The other was because of the looming fleet fuel efficiency requirements. If the total fleet fuel efficiency was below the target, the companies would get fined for emissions on a mpg basis. You could also earn additional revenue if your cars had better mileage than were necessary since credits were tradeable.
Other things that were considered included mileage improvements/savings that could potentially be used to differentiate between competitors since catalytic converts could also improve fuel efficiency.
For curious, I think this is because fuel economy and complete/proper combustion are directly at odds with each other. Better MPG means nastier exhaust, so a better catalytic converter will help clean that up. OP?
More complete combustion would result in more CO2, H2O, and energy. The by products from incomplete combustion are the ones we want to limit - CO, C, various N and S compounds etc.
All the detail you might ever need from the excellent work of Mike Ware: https://www.mikeware.co.uk/downloads/Platinomicon.pdf
The process has beautiful gradation and extreme archivial resistance with correct paper choice (but despite what you might read about it it's not the absolute best at that, because platinum is a catalyst for reactions that you don't really want to happen in your print over long timespans - the best would be the even more niche chrysotype process).
Personally I'm dialing in my approach to eventually make combination platinum / cyanotype prints (I use digital negatives, one of the issues with these alternative processes is that you can't enlarge, so they need either large format film or a digital intermediate).
Why should the thieves care about that?
> It’s killing safe low pollution cars
They are not much better than any other cars. All cars are polluters and killers.
Glad we're moving to EVs and away from this nightmare.
Which state is that, out of curiosity? I'm going to feel just a little better if I can support changing those regulations someday, knowing how callously some people treat negative externalities
Context: I did this, and it was stupid as hell. I could smell and taste my exhaust at stop lights.
I'm sure his estate sale will probably discount his truck when it's sold.
If you didn't compensate for this during the modification you've likely cut the working life of you head(s) by half.
This is a 100% urban legend BS myth.
There's a partial exception for two-strokes where if you tune the system right you get a resonance wave that lets you pack a little more mixture in on the intake/exhaust stroke. Literally no 4-stroke ICE benefits from back-pressure in any way. It's just that sometimes the things done to reduce back-pressure (small exhaust pipes being the primary one) seem like they would increase it and vice-versa hence the urban legend.
Edit: Who the heck is downvoting this? This is how ICEs work. Google it if you don't believe me.
If I need to replace them, I know where I can buy them used. Plus, I don't have to replace them if someone else removes them unasked.
One solution: Less government meddling, make cats not mandatory
Second solution: More government meddling, i.e. actually do something about the thefts
It absolutely blows my mind that people out there think #1 is the better solution
After the changes, my ability to breathe improved drastically, and I know I’m not alone. I, for one, strongly support reasonable environmental regulations as a result.
https://www.kcet.org/history-society/how-los-angeles-began-t... is a great history of those times.
When that time comes I'll change my position on the matter.
> The California Air Resources Board (CARB) is stricter on their regulations. CARB requires more precious metals and rigorous testing which is why they cost more than EPA catalytic converters.
https://autoquarterly.com/best-catalytic-converters/#Federal...
The reverse of say California not being able to define limitations because they have too many people that would agree it becomes a logistical standard would be a bizzare illogic and pretty hypocritical.
Quite impressive cognitive dissonance.
Automakers, textbook writers, etc cater to the largest state they serve (or the lowest common of several large markets), then distribute the same version to multiple locations.
In the case of cars, which have to adhere to California regulations to be sold in California, that can drive up the price in other markets due to expensive parts required for compliance and auto-manufacturers standardizing.
It’s also more constructive to explain why people are wrong (eg, why you think car regulations one place can’t impact the price in others) than just call them stupid.
The way interstate commerce clause is used is to give federal government ability to intervene, not another state government.
Why? Because it's cheaper and there's no proper testing/regulation. It's sad.
That is the case in Norway at least and we're not even part of the EU fully.
The first chart in the article is particularly bad: there are no labels! It maps two data sources (unlabelled other than one being red and the other blue!). The axis are.. unlabelled. I can infer that the horizontal axis is time (from the dates underneath), but the vertical axis is just some monotonically increasing number (I assume it's "price", but just from context offered by the article, I don't know if it's in dollars or cents or euros)
https://medium.com/@100trillionUSD/modeling-bitcoins-value-w...
You get about a quarter as much palladium as you did per dollar than you did 10 years ago.