6 ms·
A century of hair samples proves leaded gas ban worked
- ChrisArchitect 9mo ago[dupe] https://news.ycombinator.com/item?id=46865275 https://news.ycombinator.com/item?id=46865275
- antonymoose 9mo agoDumb Question: Why do you do what you do and or are you a bot? If the latter, why doesn’t HN just automate this?
- 7e 9mo ago[flagged]
- permo-w 9mo ago[flagged]
- mulmen 9mo agoHN does dedupe on a timer. If it has been a little while reposts are allowed to get a chance of reaching new eyeballs.
- gundmc 9mo agoIn this case it's not a direct duplicate of the link, but another post on the same topic. I find there is value in reading through the previous discussion that I may not have otherwise seen.
- tokyobreakfast 9mo agoI've seen this account dupe-post twice on a story that was flagged, then later vouched. Which is a telling bug for a bot to have.
- Brajeshwar 9mo agoLOL! I also found that our dear friend ChrisArchitect, sees them (maybe s/he uses a tool), and I just refer to them to see duplicates I might have missed/submitted. I see no harm, and it is a thankless job. We also know that sometimes duplicates are the only way to resurface interesting and curious articles.
- Fezzik 9mo agoIt’s a common HN practice. I’ve done it once or twice. Mods will do it often, especially with highly active topics. I imagine it started as a method to avoid duplicate posting thereby consolidating conversation and, also, so that karma attribution goes to whoever the original poster was. I imagine automation would be difficult because the same topics come from different sources and occasionally there is additional/novel information in similarly titled postings.
- wincy 9mo agoAlso important to note there is a time eventually that something is no longer a dupe, and people will still add previous discussions about it (often dang himself), because the previous conversations about the topic may be of interest. But unless some earth shattering research just came out in the last three days showing that lead is good for us, actually, it hasn’t been long enough for that to apply here.
- tomhow 9mo agoWe detached this comment from https://news.ycombinator.com/item?id=46867700 https://news.ycombinator.com/item?id=46867700 and marked it off topic.
- Spooky23 9mo agoI can’t wait until some bored rich dude funds a trad-gas influencer campaign. “With universal income, most people simply don’t need surplus IQ. But we waste billions on repair of engines suffering with substandard gas”
- tokyobreakfast 9mo agoWe already have trad-gas. It's called ethanol-free and people gladly pay a premium for it. It's far better for your engine, it's what the car manufacturers use to determine the gas mileage, and Californians can only dream of having it.
- vlovich123 9mo agoEthanol free fuel in an engine designed for ethanol blend can result in incomplete combustion, leaving deposits in fuel injectors and valves. The car companies don’t care about this for the purposes of determining gas mileage. Californians I think still remember the smog of the 90s in LA that kicked us to make our air pollution standards the highest in the nation. Going away from that I think sounds more like a nightmare than a dream for most Californians.
- tokyobreakfast 9mo agoSorry but this is complete horseshit. Ethanol is corrosive to engine and fuel system components. It is also hygroscopic and will suck water in which is bad news for your fuel system. The less the better. There is a reason modern cars will tolerate up to 15%. With modern DI engines you are getting buildup no matter what and it is completely unrelated to the presence of ethanol in the fuel. Ask any BMW owner and the fuckin' spa treatments they need to take their engines to. Flex-fuel vehicles run on E85 are required to run a tank of regular gas every few months per the manufacturer. Which is literally the opposite of what you are suggesting.
- rbanffy 9mo agoI grew up in Brazil, where we had a very successful program for cars running on ethanol fuel with a little gasoline added. It was common to have certain models of car be offered as gasoline or ethanol (back then engines needed to be tuned for one) powered. At least one car magazine would buy retail cars and fully disassemble them for analysis a year later. The difference between a gas and an ethanol engine was quite shocking - the ethanol engine was always clean and displayed less wear than the gas version of the same engine. Part measurement indicated no significant difference in wear between the engines. There were models only offered with ethanol engines because they offered a little more power because of higher compression rate.