He/him. Chinese born, Canadian citizen. University student studying environmental science, hobbyist programmer. Marxist-Leninist.

  • 1.76K Posts
Joined kolme vuotta sitten
Cake day: loka 03, 2019


But at what cost?!?!

No seriously, I’d be interested in seeing what their budget was for each part of the project because this is amazing, monumental work and I very much want to learn everything about it!

![](https://lemmy.ml/pictrs/image/0241ce68-324d-4d6b-8ad6-796805ae1bee.jpeg) ![](https://lemmy.ml/pictrs/image/d1ac3196-e434-48c4-994d-86fcb4a9e6ca.jpeg) ![](https://lemmy.ml/pictrs/image/f1ade4fe-b2e1-4ca0-b528-ac554d7de41f.jpeg) ![](https://lemmy.ml/pictrs/image/3fd6b77b-1f7a-457a-80a3-4178a9ad5b3d.jpeg) ![](https://lemmy.ml/pictrs/image/3467a4ee-b0c9-47c0-acea-d10eb07570ce.jpeg)

![](https://lemmy.ml/pictrs/image/1ecfa7c4-2211-4e92-b37a-e95a7bd7acfb.jpeg) ![](https://lemmy.ml/pictrs/image/cf5ab9f9-db8c-49e7-9650-65bb5d90b571.jpeg) ![](https://lemmy.ml/pictrs/image/33224b4d-cca5-4c1e-81eb-a71769a30e8f.jpeg) ![](https://lemmy.ml/pictrs/image/a65827a0-5b33-4352-86b1-dc47c8894ff0.jpeg) ![](https://lemmy.ml/pictrs/image/2fd20617-8401-4e2f-bd68-556312f3ff24.jpeg) ![](https://lemmy.ml/pictrs/image/74341890-baab-41c0-af13-23ebe793f2b8.jpeg) ![](https://lemmy.ml/pictrs/image/926612ec-a4ef-4dfe-8da8-b56c6d495087.png) ![](https://lemmy.ml/pictrs/image/033c998c-da55-4e0b-9f49-c31c0ce63086.jpeg) ![](https://lemmy.ml/pictrs/image/ef7756ca-cf5e-4e2f-a56c-b85c41557858.png) ![](https://lemmy.ml/pictrs/image/191732df-e1bd-4b79-907d-4e2c44fd78e5.jpeg) ![](https://lemmy.ml/pictrs/image/092d95e6-5db6-4d06-b946-7d1b39dacc56.jpeg)

The only real things Apple did well was marketing. There were phones that had all the same features, were less expensive, had better apps, and was more versatile than the iPhone, before the iPhone existed. Only difference was that they were aimed at businesses and professionals, and the UX and app ecosystem was designed around power users. Apple merely dumbed down the UX to make it suitable for both grandma and sweet sixteen Bethany to use, wouldn’t really call that making history.

All touch screen smartphones existed well before the iPhone. Phone apps and app stores existed well before the iPhone (and the first iPhone didn’t even have apps). Being overpriced as a pointless status symbol existed well before the iPhone. I don’t see how it “made history”.

![](https://lemmy.ml/pictrs/image/89777132-d70a-476d-a6e2-888a9ce1bc59.jpeg) ![](https://lemmy.ml/pictrs/image/c46bcaaa-9cd6-48cc-9fb4-a3a41fa4bfab.jpeg)

Yeah but you also are not getting security updates. Which is the problem with disabling Windows updates because it serves both necessary security updates and “feature” updates nobody wants, through the same channel, and there’s no way to disable just the latter. And Windows seems to have way more security issues than any other mainstream OS.

I always recommend switching to Linux in these cases, where you get full control over whatever the hell you want to upate, and whenever the hell you want to update it (and less incentive to disable updates in general).

This should be illegal. Imagine if you bought, like, a blender, and one day woke up to find that the manufacturer had broken into your house to replace it with their “new and improved version” that you specifically didn’t want.

Other than being open source which others have already mentioned, the RISC-V instruction set is very optimized, having been developed with the full hindsight of every ISA that came before it as well as being designed for the capabilities of modern silicon, RISC-V cores have the potential to be a lot more efficient than any of the existing dominant ISAs.

China is leading RISC-V development, and the major Chinese designs are actually open source! The Xiangshan and Alibaba designed cores, as two examples.

IMO, if choice is being prioritizes over more important things like sustainability, then yes, there can be too much choice. Economies of scale, efficiencies of scale, etc all work better when you’re only producing one type of product. This is more applicable/important in some things than others, and the amount of choice should vary accordingly.

For example: There’s a reason the Soviets built so many identical apartments in their affordable housing program, it was use the budget to build more housing and accommodate more people, or build more varieties of housing for the sake of being different, but less overall.

Yeah, I don’t think using hydrogen lifting gas is the best idea. We have multiple burned down blimps to attest to that. Also, I kind of doubt you can store enough hydrogen at atmospheric pressure to both lift the blimp and also power it. Solar panels might work, but that’d be an engineering feat that I need to see before I believe.

Some good points, which I will concede where appropriate, but TBH until I actually see real airship trans-ocean services, I will remain skeptical. Too many transportation grifts lately cough hyperloop cough.

I’ve also been thinking: I think the biggest hurdle would be using renewables for airships. All the energy storage we have so far: batteries, hydrogen, biogas etc, are too heavy, or require pressure tanks that are themselves too heavy, even if the energy source isn’t. It’s already extremely easy to use renewables for ships, because many large ships are diesel electric already, with diesel engines driving a generator and motors driving the propellers. Just replace the diesel part with renewable electricity generation and the fundamental design is left unchanged. What’s more, ships running renewables already exist and can alrrady make trips for real.

IMO, a ship running entirely on renewables with lower raw energy efficiency numbers is more sustainable than an airship running on petroleum aviation fuel but more energy efficiency.

Also to avoid wire losses. There’s actually a significant real world efficiency difference between storing the power and charging at designated charging stations (that are also turned off when not in use) vs electrifying the entire route all the time.

They don’t hide it well at all, we’ve just been conditioned to see it as normal.

You know a lot of black people defected from the US to the USSR to escape racism and segregation right?


Why did airships die? It’s not actually because of the Hindenburg disaster. It’s because of the fact that helium (or even hydrogen, which is lighter) has very low buoyancy all things considered. So you have to be even more frugal with weight than airplanes, which means the equipment and amenities you can bring is extremely limited, and more importantly, the number of people you can carry, which ensured that the airships of old were far from economical. This is exacerbated when you consider how slow they are. Packing in people like sardines might be acceptable for a 16 hour flight on an airliner, but for a 6 day journey, no. Uncomfortable wouldn’t come close to describing it, it will be terrible for both your physical and mental health, and can even lead to fatal complications like deep vein thrombosis. And this is saying nothing of the weight of the absolute essentials like fuel, water, and food for a multi day journey. The Hindenburg was not exactly luxurious, it had bunk beds for example, but IMO, the amenities it did have, like bedrooms, showers, a promenade, cafeteria, etc would are absolutely be necesaary if you’re on the ship for more than 24 hours, which also exacerbates the weight issue, which was what killed the airship in the first place. It really doesn’t matter what new technology we have, the low buoyancy of helium is a fundamental issue of physics, not something we can engineer our way out of.

Also, we’re running out of helium on Earth. It’s not like hydrogen where there’s an entire ocean’s worth of it here, helium is very rare on terresterial planets, and ours is no exception. It comes mostly from radioactive decay deep in the Earth, which isn’t a lot. It’s also very important for cooling superconductors, like the ones used in life saving MRI machines and in scientific equipment like particle accelerators. Using it in a blimp will inevitably lead to it being vented into the atmosphere, and helium is light enough to float directly into space, might not be the best idea for sustainability.

Also also, I’m not convinced that Zeppelins are actually more efficient per passenger-km than a ship, considering how many people a ship can carry compared to an airship. It’s also easier to use clean fuels like hydrogen (which require heavy pressure-tanks to safely contain, and the molecule itself just has lower energy density than aviation fuel to begin with) when you don’t have such razor thin weight limits. If we want a way to cross the oceans with less of a carbon footprint than a plane, maybe we should look into reviving ocean liners, building or refitting them for maximum efficiency while being liveable, as opposed to a luxury cruise ship. And for land based travel, the train is king for both speed and efficiency.

“Draw seventeen lines all perpendicular to each other”

China's new supercapacitor tram rolls off production line (2020 article)
![](https://lemmy.ml/pictrs/image/9c9cf301-e9f7-4898-a5a1-2450c9673ed9.jpeg) ![](https://lemmy.ml/pictrs/image/e748dc37-bdb2-45b2-ab64-76d9f9adf67f.jpeg)

China's new supercapacitor tram rolls off production line (2020 article)
![](https://lemmy.ml/pictrs/image/9c9cf301-e9f7-4898-a5a1-2450c9673ed9.jpeg) ![](https://lemmy.ml/pictrs/image/e748dc37-bdb2-45b2-ab64-76d9f9adf67f.jpeg)