fidzu : computers

Can Aircela's machine "create gasoline using little more than electricity and the air that we breathe"? Jalopnik reports... The Aircela machine works through a three-step process. It captures carbon dioxide directly from the air... The machine also traps water vapor, and uses electrolysis to break water down into hydrogen and oxygen... The oxygen is released, leaving hydrogen and carbon dioxide, the building blocks of hydrocarbons. This mixture then undergoes a process known as direct hydrogenation of carbon dioxide to methanol, as documented in scientific papers. Methanol is a useful, though dangerous, racing fuel, but the engine under your hood won't run on it, so it must be converted to gasoline. ExxonMobil has been studying the process of doing exactly that since at least the 1970s. It's another well-established process, and the final step the Aircela machine performs before dispensing it through a built-in ordinary gas pump. So while creating gasoline out of thin air sounds like something only a wizard alchemist in Dungeons & Dragons can do, each step of this process is grounded in science, and combining the steps in this manner means it can, and does, really work. Aircela does not, however, promise free gasoline for all. There are some limitations to this process. A machine the size of Aircela's produces just one gallon of gas per day... The machine can store up to 17 gallons, according to Popular Science, so if you don't drive very much, you can fill up your tank, eventually... While the Aircela website does not list a price for the machine, The Autopian reports it's targeting a price between $15,000 and $20,000, with hopes of dropping the price once mass production begins. While certainly less expensive than a traditional gas station, it's still a bit of an investment to begin producing your own fuel. If you live or work out in the middle of nowhere, however, it could be close to or less than the cost of bringing gas to you, or driving all your vehicles into a distant town to fill up. You're also not limited to buying just one machine, as the system is designed to scale up to produce as much fuel as you need. The main reason why this process isn't "something for nothing" is that it takes twice as much electrical energy to produce energy in the form of gasoline. As Aircela told The Autopian " Aircela is targeting >50% end to end power efficiency. Since there is about 37kWh of energy in a gallon of gasoline we will require about 75kWh to make it. When we power our machines with standalone, off-grid, photovoltaic panels this will correspond to less than $1.50/gallon in energy cost." Thanks to long-time Slashdot reader Quasar1999 for sharing the news.

Read more of this story at Slashdot.

25 Jan 2026 9:56pm GMT

Richard Stallman spoke Friday at Atlanta's Georgia Institute of Technology, continuing his activism for free software while also addressing today's new technologies. Speaking about AI, Stallman warned that "nowadays, people often use the term artificial intelligence for things that aren't intelligent at all..." He makes a point of calling large language models "generators" because "They generate text and they don't understand really what that text means." (And they also make mistakes "without batting a virtual eyelash. So you can't trust anything that they generate.") Stallman says "Every time you call them AI, you are endorsing the claim that they are intelligent and they're not. So let's let's refuse to do that." "So I've come up with the term Pretend Intelligence. We could call it PI. And if we start saying this more often, we might help overcome this marketing hype campaign that wants people to trust those systems, and trust their lives and all their activities to the control of those systems and the big companies that develop and control them." "By the way, as far as I can tell, none of them is free software." When it comes to today's cars, Stallman says they contain "malicious functionalities... Cars should not be connected. They should not upload anything." (He adds that "I am hoping to find a skilled mechanic to work with me in a project to make disconnected cars.") And later Stallman calls the smartphone "an Orwellian tracking and surveillance device," saying he refuses to own one. (An advantage of free software is that it allows the removal of malicious functionalities.) Stallman spoke for about 53 minutes - but then answered questions for nearly 90 minutes longer. Here's some of the highlights...

Read more of this story at Slashdot.

25 Jan 2026 7:36pm GMT

Newsweek reports on how the U.S. Congress is debating "kill switch" technology for vehicles, "which would be able to monitor diver behavior, detect impairment such as intoxication and intervene..." "While the technology is not yet a legal requirement in cars, Congress passed a law with the Infrastructure Investment and Jobs Act in 2021 that requires the Department of Transportation to create the mandate." Republican Representative Thomas Massie of Kentucky introduced an amendment to a federal spending bill that would reverse the mandating of the technology. On Thursday, 160 Republicans voted in favor, but the legislation failed 164-268, according to the House Clerk's official roll call - with 57 Republicans joining 211 Democrats in voting against it... The House vote signals substantial Republican support for curbing any move toward mandated impaired-driving prevention systems, but not enough to pass such legislation. Critics of the kill switch technology see it as government overreach, while those in favor argue that it could prove to be lifesaving. Thanks to long-time Slashdot reader SonicSpike for sharing the article.

Read more of this story at Slashdot.

25 Jan 2026 5:34pm GMT

How two podcasters turned a Star Trek side project into a full-time career.

25 Jan 2026 12:00pm GMT

9front, by far the best operating system in the whole world, pushed out a new release, titled "GEFS SERVICE PACK 1". Even with only a few changes, this is still, as always, a more monumental, important, and groundbreaking release than any other operating system release in history. Everything changes, today, because exec() now supports shell-scripts as interpreter in #!, improved sam scrolling, TLS by default in ircrc, and more. You're already running 9front, of course, but if you're one of the few holdouts still using something else, download GEFS SERVICE PACK 1 and install it.

25 Jan 2026 11:09am GMT

Your mission, should you choose to accept it, is to sneak into the earliest parts of the boot process, swap the startup config without breaking anything, and leave without a trace. Are you ready? Let's begin. ↫ Jynn Nelson Genius.

25 Jan 2026 10:56am GMT

Destructive payload unleashed on 10-year anniversary of Russia's attack on Ukraine's grid.

24 Jan 2026 7:08pm GMT

Rice University chemists replicated Thomas Edison's seminal experiment and found a surprising byproduct.

24 Jan 2026 6:36pm GMT

Encrypting the data stored locally on your hard drives is generally a good idea, specifically if you have use a laptop and take it with you a lot and thieves might get a hold of it. This issue becomes even more pressing if you carry sensitive data as a dissident or whistleblower and have to deal with law enforcement. Or, you know, if you're an American citizen fascist paramilitary groups like ICE doesn't like because your skin colour is too brown or whatever. Windows offers local disk encryption too, in the form of its BitLocker feature, and Microsoft suggests users store their encryption keys on Microsoft's servers. However, when you do so, these keys will be stored unencrypted, and it turns out Microsoft will happily hand them over to law enforcement. "This is private data on a private computer and they made the architectural choice to hold access to that data. They absolutely should be treating it like something that belongs to the user," said Matt Green, cryptography expert and associate professor at the Johns Hopkins University Information Security Institute. "If Apple can do it, if Google can do it, then Microsoft can do it. Microsoft is the only company that's not doing this," he added. "It's a little weird… The lesson here is that if you have access to keys, eventually law enforcement is going to come." ↫ Thomas Brewster Microsoft is choosing to store these keys in unencrypted fashion, and that of course means law enforcement is going to come knocking. With everything that's happening in the United States at the moment, the platitude of "I have nothing to hide" has lost even more of its meaning, as people - even toddlers - are being snatched from the streets and out of their homes on a daily basis by fascist paramilitaries. Even if times were better, though, Microsoft should still refrain from storing these keys unencrypted. It is entirely possible, nay, trivial to address this shortcoming, but the odds of the company fixing this while trying to suck up to the current US regime seem small. Everybody, but especially those living under totalitarian(-esque) regimes, should be taking extra care to make sure their data isn't just encrypted, but that the keys are safe as well.

23 Jan 2026 11:43pm GMT

While starting this post I realized I have been maintaining personal infrastructure for over a decade! Most of the things I've self-hosted is been for personal uses. Email server, a blog, an IRC server, image hosting, RSS reader and so on. All of these things has all been a bit all over the place and never properly streamlined. Some has been in containers, some has just been flat files with a nginx service in front and some has been a random installed Debian package from somewhere I just forgot.

19 Jan 2026 12:00am GMT

In the recent blog post on the work funded by Sovereign Tech Fund (STF), we provided an overview of the "File Hierarchy for the Verification of OS Artifacts" (VOA) and the voa project as its reference implementation. VOA is a generic framework for verifying any kind of distribution artifacts (i.e. files) using arbitrary signature verification technologies. The voa CLI ⌨️ The voa project offers the voa(1) command line interface (CLI) which makes use of the voa(5) configuration file format for technology backends. It is recommended to read the respective man pages to get …

11 Jan 2026 12:00am GMT

In 2024 the Sovereign Tech Fund (STF) started funding work on the ALPM project, which provides a Rust-based framework for Arch Linux Package Management. Refer to the project's FAQ and mission statement to learn more about the relation to the tooling currently in use on Arch Linux. The funding has now concluded, but over the time of 15 months allowed us to create various tools and integrations that we will highlight in the following sections. We have worked on six milestones with focus on various aspects of the package management ecosystem, ranging from formalizing, parsing and writing of …

10 Jan 2026 12:00am GMT