ppf

21 ms·

271.
by ppf 6y ago
I can't do that, as an effective and large-scale method of recycling lithium batteries (and more specifically, one that can extract the lithium, as well as other elements) does not yet exist, so we have no idea how much energy it would
272.
by ppf 6y ago
300 kg CO2e per kWh, for a lithium battery pack. Shit. EVs are worse than I thought!
273.
by ppf 6y ago
According to this paper[1] (and using an online calculator to roughly convert GJ to CO2e), manufacturing and assembly of a Li-ion pack adds around 300Kg CO2e/kWh. That's already a problem for your phone, before you even start co
274.
by ppf 6y ago
I suspect living through the collapse of Libya as an innocent resident of that country, was probably one of the most frightening events in recent American history.
275.
by ppf 6y ago
I saw that. I happen to know what "nocoiner" means, and immediately stopped reading.
276.
by ppf 6y ago
Interesting idea - is there a technological reason why this design is possible now, or did the designers of the orignal rotary engine just not consider this layout?
277.
by ppf 6y ago
Yep, I've seen one or two reports of entire cities being tested. What testing method do they use, that is accurate enough to catch all cases in a very densly populated developing city (and within a week)? Unless Covid isn't as inf
278.
by ppf 6y ago
You mean, ignore it? It beggars belief that countries like New Zealand, which have significant geographical and population advantages over China, have had to work so hard to get where they are today, yet China was able to quietly beat it.
279.
by ppf 6y ago
I understand your frustration, but (just to pose some devil's advocate questions), your neighbours' behaviours that you describe probably already are inline with government-mandated changes. Peat is in it's own category, so
280.
by ppf 6y ago
Thanks for your response. That's not the point I was making. I was referring to the idea that "nothing can be done without government mandates, and this kind of article that implies to conumers that it's their fault or that t
281.
by ppf 6y ago
It's very interesting watching the HN response to this. So far, it largely consists of: 1. It's not the responsibility of consumers to adjust their habits, it's up to governments to mandate behavioural change 2. Tech will fix
282.
by ppf 6y ago
I'm not sure how they define "digital tech emissions", but the embodied energy of a newly manufactured laptop (approx. 1500 kWh, or one barrel of oil) will get you nearly 2,500 passenger jet miles (assuming 58 miles per gallo
283.
by ppf 6y ago
You're ignoring the differing resource costs. China can freely consume domestic, brown coal for manufacturing purposes, in a significantly cheaper way than any Western country.
284.
by ppf 6y ago
Tell me how someone living in Rural Africa can get any useful access to the Ethereum blockchain, without accepting a significant loss of expected benefits. Frankly, if we're going to be broadly racist and otherwise discriminatory about
285.
by ppf 6y ago
I bet they do, when they realised just how many companies decided it wasn't worth complying with EU data laws and just block EU IPs instead.
286.
by ppf 6y ago
I'm comparing the modern Mk 5 Polo, which is supposed to be a small city car, to the original Golf, which is a family hatchback, to point out the ever-increasing size of vehicles. The modern Golf (including the electric/hybrid var
287.
by ppf 6y ago
If you took the BOM cost of the ICE components in a hybrid car, and spent it on the electric drivetrain, you would end up with a very poor performing EV (at least, the range would be abysmal).
288.
by ppf 6y ago
Just for fun: https://www.carsized.com/en/cars/compare/volkswagen-golf-201... Edit: The current Mk 5 VW Polo is quite a bit bigger than the original Mk1 Golf.
289.
by ppf 6y ago
That's probably much more to do with exemptions from the Congestion Charge, and the Ultra Low Emissions Zone.
290.
by ppf 6y ago
You're talking about a different market - the advertised mpg of the Prius, et al, might seem high in the US, but here in Europe / the UK, it is barely competitive with regular ICE cars. There's also the various government inc
291.
by ppf 6y ago
This lines up perfectly with my predictions for the future of UK roads - they will be filled with leased, oversized hybrid SUVs, driven by people who care about nothing except getting to their destination. These vehicles will be hybrids, be
292.
by ppf 6y ago
You missed this line: >"The BMW X5, Volvo XC60 and Mitsubishi Outlander emitted 28-89% more CO2 than advertised when tested by Emissions Analytics on a fully charged battery in optimal conditions. Hybrids are designed by manufacture
293.
by ppf 6y ago
>Plug-in hybrids are fake electric cars, built for lab tests That is a very reasonable assumption. Euro emissions legislation makes it practically impossible to sell a new ICE-only car, so hybrid cars are designed to be the nearest thing
294.
by ppf 6y ago
Are we now denying the centuries of state-sponsored religious oppression that thrived in Europe? Assuming you are in the US, you might want to remember why the first settlers attempted to start a new life. As someone whose national history
295.
by ppf 6y ago
>Those who seek to shut down discussion by labeling dissenters as "science deniers" deserve to be scrutinized. Exactly this. In line with my theory that Covid (or at least, the overall response to it) has accelerated all that w
296.
by ppf 6y ago
It's quite easy. I got zfs working in minutes with Devuan.
297.
by ppf 6y ago
You have a 75% nuclear-powered grid in France, so yes, that probably does work out. It is also the only practical solution if we want EVs. I really don't buy the whole "electric cars have less moving parts" argument. As I sai
298.
by ppf 6y ago
I hope this isn't a silly question - do we know that the placebo group represented half of the total enrolled? The Pfizer press release is very short on details.
299.
by ppf 6y ago
Great, thanks. I just compared my family car to a somewhat equivalent EV, and it takes 40,000km to break even in CO2 emissions. This is very much in line with my original point (and my "back of the envelope maths"). In the online
300.
by ppf 6y ago
Unless you have paid for the article and read it, we are only discussing an abstract. That isn't enough information to bring to a discussion, as we have absolutely no figures, initial assumptions, or methadologies to explore. There&#x2

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