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Comment Re:3D printing wasn't the problem (Score 1) 97

I'll find out in mid January, lol - it's en route on the Ever Acme, with a transfer at Rotterdam. ;) But given our high local prices, it's the same cost to me of like 60kg of local filament, so so long as the odds of it being good are better than 1 in 8, I come out ahead, and I like those odds ;)

That said, I have no reason to think that it won't be. Yasin isn't a well known brand, but a lot of other brands (for example Hatchbox) often use white-label Yasin as their own. And everything I've seen about their op looks quite professional.

Comment Re:Reinvented a Sterling engine (Score 2) 30

If the article had compared it to existing sterling engines and mentioned how it was better than existing Sterling Engines, that would have made it interesting.

Stirling engines actually work but don't return much in the way of mechanical energy for low heat differentials. The usual deal with attempts to scale up and commercialise Stirling engines for electricity generation or other use cases normally involves choosing hydrogen as the working fluid because it's closest to being an "ideal gas" and hence more efficient than the alternatives. The rest of the research budget is spent trying to contain the hydrogen gas with seals etc. before bankruptcy beckons. Step and repeat.

This re-invention attempts to get round the "blow a seal" problem by using fixed but flexible membranes to contain the hydrogen. I can imagine other issues with this technology that could cause problems in both the short-term and long-term but I'm not sufficiently knowledgeable about the materials etc. involved.

Comment Re:Saturated market (Score 1) 72

Will you show your working? I'd be very curious to see it

For the record, I bought a longer 10m cable when I got my new car to replace the old 5m cable. It cost me 120 quid back then, but I see they can be picked up for 60 quid now. This is for a 7kW capable cable.

In the UK today, petrol is about 130p per litre, so 120 quid's worth is 92 litres. A UK spec Mercedes GLA (the equivalent of my car, an EQA) gets about 42mpg. That's 9.2 miles per litre, so enough for 850 miles. The typical UK car is driven 20 miles per day, so that's enough petrol for maybe six weeks at a push. Hence why I'm curious about your working. From what I can see, Canadian gas is about 134 cents per litre today, and I'd be amazed if you drove as little as 20 miles per day or got as much as 42mpg, so I can't see how this works for you. Looks like you can get a 10m cable for somewhere between 200 and 400 Canadian dollars, so that's also in line with UK pricing.

Comment Re:Saturated market (Score 1) 72

This is such a silly little story to tell yourself, about demand being saturated, when EVs are taking an increasing market share in European markets (and others, but the story you're commenting on is about Europe). And to claim yourself as working class when you've got a nickname here of dev and you're on Slashdot is just incredibly inauthentic.

Comment Re:H2 is a bugger to work with (Score 1) 30

I'm sure they have smart engineers and have thought lots of this through, and have robust and well-tested systems etc. But it still seems like it's inherently hard work for not much payoff. And even the geothermal stuff seems odd; what's so much better about this solution than standard geothermal solutions.

Comment What you choose to highlight matters so much (Score 2) 72

As always, framing matters hugely. And at the moment, sinij is having a lot of success in framing stories about renewables, EVs, etc as being a challenge.

You’d never know from these stories that actually, renewables and EVs continue to be booming market sectors that continue to have lots of popular and political backing, including in Europe. For example, EV sales in Europe are substantially up this year compared to last year (1.5m+ sales so far, share of new sales up by at least 3 percentage points); Spain has committed to 95% of domestic production being EVs by 2035; the UK is announcing the clear-down of its connection backlog this week which will substantially accelerate new renewables coming onto the national grid; Pakistan has gone from a standing start to a solar share greater than China’s in four years, leading to solar generation exceeding demand at points in some industrial regions for the first time ever; and on and on.

So much good stuff is happening out there.

Comment Re:99% reduction in pollution already since 1960 (Score 1) 72

Relative reductions are super and all, but the fact of the matter is that you will still die in fairly short order if you're shut in your car by a villain who runs a hose from the exhaust to your window and leave the engine running, because there's still plenty of nasties left in there. And obvs, as the other poster said, no-one's scrubbed any CO2 from the tailpipe ever.

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