First, what kind of models are you curious about making? Big, small, decorative, springy, strong? Cosplay helmets, bike parts, tabletop miniatures?
This will inform whether you should look at tutorials for FDM (filament) printing or MSLA/DLP (resin) printing.
It’s more about the how and why.
How: CCS pumps liquefied or pressurized gas into an exhausted oil or saline reservoir. These reservoirs didn’t hold pressurized gas before, so it’s difficult (if not impossible) to prove they won’t leak. In the Decatur case, about 8 kilotons of CO2 and saltwater either found or created a crack in the reservoir, exactly as critics predicted. Locals are worried about groundwater contamination.
Why: CCS is largely unregulated in the US, and the companies interested in it are ones with awful environmental track records – ADM is no exception there. To claim the 45Q tax credit, they only need to store the CO2 for 3 years. Why would they care about preventing leaks if they already got their payout? Doing shoddy work is in their best interest.
Does this event prove that underground CCS is literally impossible? Of course not. But feasibility isn’t a pass/fail test, it’s judged by factors like cost and risk. This event proves the approach isn’t foolproof and the companies aren’t trustworthy. So it’s high time we stop acting like they are.
Beyond All Reason is my favorite RTS at the moment. I enjoyed Planetary Annihilation (despite its flaws), and BAR provides the same sense of exponential growth, escalation, and strategic pivots.
One of my favorite things about the game is that it’s not ridiculously APM-intensive. The controls have a learning curve, but they enable you to “fire and forget” most of your tasks.
If you want to get a sense for the game before diving in, Brightworks does some good casting for both competitive and community-level games. https://www.youtube.com/@BrightWorksTV
But we know what it really is all about - selling more cars.
It isn’t even about selling more cars at this point, it’s about selling securities. Their market cap dwarfs their total sales. Their P/E ratio is 67.67x, meaning they could sell cars for 67 years and still not make as much money as their stocks are worth today.
The real product is the rising stock price. The factories are just a front.
Thanks for the analysis and insight!
I found at least one of the posts, and you’re right, that’s not really what impressed them. It just stuck with me because I’m a hardware girl.
I’d believe it because I remember the same being true for TikTok.
I don’t have the links on me right now, but I remember clearly that when tiktok was new, engineers trying to figure out what data it collected found that the app could recognize when it was being observed, and would “rewite” itself to evade detection.
They noted that they’d never seen this outside of sophisticated malware, and doubted that a social media company had the resources to write such a program.
In hot weather, I use silica gel neck wraps, which slowly release water to keep you cool (if soggy). I really want to try making an equivalent out of sodium sulphate gel and see how it compares.
That’s the only way to offer free services?! What about donation-based models? Maybe Mozilla could have set up something like what Brave has, except not based around a sketchy cryptocurrency.
Please correct me if I’m mistaken, but I thought Brave only gave donatable tokens to users as a reward for watching ads… ads which Brave curated for the user based on their activity. It’s just targeted ad revenue with extra steps.
At first blush, it seems to me that both Brave and Anonym want to be the middleman for targeted advertising. What am I missing?
Solid point. A laptop battery is around 60Wh, and charging that in 1 minute would pull 3.6kW from the outlet, or roughly double what a US residential outlet can deliver.
Supercaps stay pretty cool under high current charging/discharging, but your laptop would have to be the size of a mini fridge.
The research paper itself was only talking about using the tech for wearable electronics, which tend to be tiny. The article probably made the cars-and-phones connection for SEO. Good tech, bad journalism.
Yeah, this matches my experience.
A supercapacitor buffer will cost around twice as much and deliver around 1/10th the watt-hours of a similarly-sized lead acid battery. And lead acid isn’t exactly great to begin with.
Capacitors are useful, but only in applications where the total amount of energy stored is more-or-less unimportant.
Yeah, no. This is not about chargers or batteries or phones or cars. This study is about improved charge/discharge rates for supercapacitors.
Supercaps have very high flow rate, but extremely low capacity. Put them in a phone or a car and it would run very fast for five minutes. Supercaps are useful, don’t get me wrong, but they’re not batteries.
Very cool research from UC Boulder, but the journalism leans way too far into clickbait.
Transportation is a necessity, and I believe every inelastic market deserves a nationalized alternative to prevent price gouging. Like how the USPS keeps UPS and FEDEX in line. With that being said, nationalization doesn’t fix this particular problem.
China is run like a giant capitalist cartel (in all but name), and appropriately, their ultimate weapon in their hunt for global monopolies is the provision of slave labor. The number of slaves in Xinjiang alone is estimated in the hundreds of thousands, and their labor has been credibly linked to the production of cotton (face masks), polysilicon (solar panels), and aluminum and lithium (EVs).
It’s no coincidence that these are the industries being slapped with tariffs. No amount of subsidization or nationalization can level a playing field that’s been tilted by slavery. You don’t outcompete slavery, you either penalize goods suspected of involving it, or you go full John Brown.
Even with unlimited funding, you want to scale the size of the train to the population that could potentially ride on it.
A P42 locomotive pulling 7 Amtrak superliner cars is 700 tons of steel getting 0.4 miles per gallon of diesel. That’s a crapton of mining and drilling and CO2, and it would be incredibly wasteful if it ended up carrying, like, two people at a time.
When a smaller nation aligns itself with a larger empire or coalition, it will gravitate towards that collective’s philosophy. Sometime’s it’s imposed through political or military pressure, or “encouraged” through subversion, but it can just as easily happen through the natural influence of a larger and more prolific culture.
Historically, there have been more socialist and/or communist states associated with the USSR than not. Especially when measured by population.
Lets drop this whole “lesser of two evils” thing […] it certainly doesnt work with comparing governments.
I think it is deeply unwise to take that to heart.
I grew up deep in the American Midwest, surrounded by Evangelical-leaning Christian fundamentalism. Out there, committing one sin was considered as bad as committing a hundred (see also: Matt 5, James 2:10). They dropped the whole “lesser of two evils” thing, and you know what happened? They treated gays the same way they treated murderers, because the two sins were equally easy to condemn. They put rapists in pulpits because in their eyes, molesting a child was just as easy to forgive as ogling an adult.
When you tell people to reject nuance in ethics, that there is no “greater evil,” you remove 90% of their moral compass. They become pliable and easily manipulated by whoever can seize power or respect (see also: Trump).
Every person has flaws, and every system, government, or ideology created by people is likewise flawed. If we refuse to judge the severity of those flaws, refuse acknowledge that there are lesser evils in government, then we claim our own ideologies are no better than fascism – after all, both have their sins, and we just claimed that all sins are equal.
Youtube videos often gloss over the details for the sake of uninhibited futurism.
Large-scale hydrogen electrolysis has a cost of around 55kWh/kg, and when you combust the H2 directly you get about 39kWh/kg back. Without compression/transport, using H2 as a heating fuel is 71% efficient.
H2 is usually compressed for transport. Compression of 1 kg of H2 to 700 bar costs about 5kWh of additional electricity. I’ll spare you the calcs, but truck transport is under 1kWh/kg H2. This reduces our efficiency to 39kWh/61kWh or 64%.
Converting H2 to ammonia takes the place of the compressor and truck. 2 mols of ammonia burn for 162kcal, less than the 204kcal you’d get from 3 mols of H2. The Haber-Bosch process reduces output to 31kWh per kg of H2 put in. This reduces out efficiency to 31kWh/55kWh or 56%.
With currently-proven cracking technology, it costs around 23kcal/mol of ammonia, reducing overall efficiency to about 55%. It is more effective to burn ammonia directly than to convert it into H2 and burn the H2.
Using ammonia as a transport medium removes a bunch of technical problems, but it introduces new ones. It’s corrosive, it’s toxic, it burns eyes/lungs/skin, and it wastes more energy than you’d think.
I will say this about Biden: the dude’s downright sneaky. It seems to be his administration’s main strategy to publicly walk back a major agenda point, let right-wingers celebrate, and then after the media hype (and potential for right-wing backlash) dies out, quietly split it up into smaller programs that get pushed further than the original agenda ever could.
So yeah, it seems on-brand that the Biden administration would push for LNG exports after Russia’s invasion of Ukraine, and then go back later and curtail them instead.
I think for a small, detailed figure that you’re going to photograph, I’d recommend resin sprayed with a food-safe clear coat such as shellac.
Resin of all kinds requires rubber gloves, cleanup, and a well-ventilated room because it’s smelly and generally bad for you in its unfinished liquid form. A small resin printer will cost under USD$200. Creality has one on sale for USD$100. They also sell washing/curing stations – I built my own stations out of junk, but for USD$99, I’d go with theirs. Much more compact.
Nerdtronics made some excellent videos introducing resin and explaining how and why we print the way we do. These days, almost all printers are plug-and-play and the software is super smart, but I think these videos are highly educational anyways.