elihu

26 ms·

331.
by elihu 3y ago
At least China is making relative resource efficient vehicles like the BYD Seagul and mostly using LFP batteries that don't require nickel or cobalt. In the U.S. on the other hand, Chevy just announced they're going to stop produc
332.
by elihu 3y ago
I think it's weird that people react so negatively to geoengineering when the status quo is that we're changing the climate adversely just by thoughtless inaction with respect to reducing CO2 emissions. I do agree with the sentime
333.
by elihu 3y ago
This is a random plate tectonic forecast I found on Youtube: https://www.youtube.com/watch?v=uLahVJNnoZ4
334.
by elihu 3y ago
Funny enough, one of the arguments for longer key lengths now is to save memory. With IPV4 the way it is now, the address space is very fragmented so you need a lot of router table entries. More available address space means more contiguo
335.
by elihu 3y ago
You said: "Before that, you in practice had been limited to synchronous permanent-magnet DC motors." Series-wound DC motors don't have permanent magnets at all -- rather, they have two sets of windings (connected in series) t
336.
by elihu 3y ago
Wouldn't series wound DC motors have been an option? They're awful for a lot of reasons (low efficiency, brush wear, hard to do regen or even reverse without complex switching mechanisms, etc...) but they're simple and don&#
337.
by elihu 3y ago
I think part of the point of moving to ray tracing and physically correct global illumination is that if the technology stack works right you don't actually have to work very hard to get your assets to look good. Let's take for ex
338.
by elihu 3y ago
Fair enough.
339.
by elihu 3y ago
I think they'll probably end up around parity. Energy density will improve, but people are still likely to want to have a big enough battery that range isn't an issue. One thing I think that could dramatically improve people&#x27
340.
by elihu 3y ago
It's hard to prove causality, but I don't think it's a coincidence that not long after the protectionist Inflation Reduction Act passed, Chevy has now cancelled the Bolt EV and EUV. The Bolt was a rare success story of making
341.
by elihu 3y ago
A side benefit of being on or near the ocean is immediate access to a thermal sink. Nuclear power plants (and also fossil fuel thermal plants) divert substantial amounts of water for cooling. If fresh water is increasingly in short supply
342.
by elihu 3y ago
Probably, but even if we do that it's still good to have technology to deal with the PFAS already out there. Apparently 3M has announced that they're going to stop making PFAS by the end of 2025. So, that's progress I guess
343.
by elihu 3y ago
This probably isn't at the top of the list of serious concerns, but one problem that's kind of unique to AI is that in general, AI-generated content isn't eligible for copyright protection. Companies might worry about losing
344.
by elihu 3y ago
> "Mid-February also saw reports emerge that the world’s biggest lithium-ion battery manufacturer, China’s CATL (Contemporary Amperex Technology Co., Limited), had begun offering discounts on batteries sold to certain Chinese EV com
345.
by elihu 3y ago
There is one for JLCPCB that generates the BOM, but you still have to manually rename the columns. https://support.jlcpcb.com/article/84-how-to-generate-the-bo...
346.
by elihu 3y ago
The launch pad wasn't supposed to disintegrate and shower the surrounding area with large quantities of all sizes of concrete debris. It's pretty reasonable for them to get push-back for their inadequate engineering when it cause
347.
by elihu 3y ago
I've been learning PCB design recently, and I'd like to point out that having the manufacturer do all the surface mount assembly can be surprisingly cheap and it's not all that hard to do. I'm using Kicad and JLCPCB. Th
348.
by elihu 3y ago
I agree that's the main problem that needs to be fixed, but even so some people and most business will still need to file taxes because the federal government isn't omniscient. It would be better if those people had free software
349.
by elihu 3y ago
It seems like there's some overlap with the Bartle types from online gaming. You tend to have 4 main motivations to play an massively-multiplayer online game: there's the explorers, the achievers, the socializers, and the killers
350.
by elihu 3y ago
This is probably a completely unrealistic goal for a wide variety of reasons, but it would be amazing to have something like this in a public park. I could also imagine going on tour. Like, you get permission in advance from some random pa
351.
by elihu 3y ago
Those things can all be solved with current technology. Batteries can be insulated and heated to optimal temperatures in cold climates. There are already some roads in Sweden and Germany where trucks can charge from overhead lines while m
352.
by elihu 3y ago
Come to think of it, that's probably going to happen eventually. There's no future for internal combustion ground transportation, and eventually most of those gas stations are going to be closed. I wouldn't be surprised if,
353.
by elihu 3y ago
I'm actually not sure what the legal criteria are around blocking roads. I mean, it's not unusual for protests to block roads, but there's usually some amount of rule-bending when it comes to protests -- that's often th
354.
by elihu 3y ago
I think part of the problem here is that the public and government officials don't treat lack of charging infrastructure and broken chargers as an emergency. If a tree falls across a major road, you can bet there will be work crews sho
355.
by elihu 3y ago
Of course there's something to see here. Lack of reliable, open, vendor neutral charging infrastructure is a major problem.
356.
by elihu 3y ago
There's also kind of a grey zone in there of "no, I can't buy it, but if I was a major car manufacturer I could." I wish we had access to all the good stuff as retail customers, but that's just not how it is. (This
357.
by elihu 3y ago
Cobalt is practical if you want to make low millions of cars. It ceases to be practical if you want to make a billion cars. There just isn't enough of it readily available to scale.
358.
by elihu 3y ago
The point isn't necessarily to equal or beat kerosene in terms of weight and range, but rather to be good enough that electric aircraft are usable for many or most use cases. Planes tend to be very expensive to operate, due to maintena
359.
by elihu 3y ago
A couple reasons might be the chicken tax (25% tariff on all imported trucks) and if it's "too small" it might be in the category of light trucks where the EPA imposes very strict fuel economy standards. I blame regulatory ca
360.
by elihu 3y ago
The "chicken tax" is 25% actually, unless something changed recently.

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