Day: November 8, 2025

Thanks For A Superconference

November 8, 2025 by No comments

Last weekend was Supercon, and it was, in a word super. So many people sharing so much enthusiasm and hackery, and so many good times. It’s a yearly dose of hacker mojo that we as Hackaday staff absolutely cherish, and we heard the same from many of the participants as well. We always come away with new ideas for projects, or new takes on our current top-of-the-heap obsession.

If you didn’t get a chance to see the talks live, head on over to the Hackaday YouTube stream and get yourself caught up really quickly, because that’s only half of the talks. Over the next few weeks, we’ll be writing up the other track of Design Lab talks and getting them out to you ASAP.

If you didn’t get to join us because you are on an entirely different continent, well, that’s a decent excuse. But if that continent is Europe, you can catch us up in the Spring of 2026, because we’re already at work planning our next event on that side of the Atlantic.

Our conferences always bring out the best of our community, and the people who show up are so amazingly positive, knowledgeable, and helpful. It’s too bad that it can only happen a few times per year, but it surely charges up our hacker batteries. So thanks to all the attendees, presenters, volunteers, and sponsors who make it all possible!

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What Has 5,000 Batteries And Floats?

November 8, 2025 by 8 Comments

While it sounds like the start of a joke, Australian shipmaker Incat Tasmania isn’t kidding around about electric ships. Hull 096 has started charging, although it has only 85% of the over 5,000 lithium-ion batteries it will have when complete. The ship has a 40 megawatt-hour storage system with 12 banks of batteries, each consisting of 418 modules for a total of 5,016 cells. [Vannessa Bates Ramierz] breaks it down in a recent post over on IEEE Spectrum. You can get an eyeful of the beast in the official launch video, below. The Incat Tasmania channel also has other videos about the ship.

The batteries use no racks to save weight. Good thing since they already weigh in at 250 tonnes. Of course, cooling is a problem, too. Each module has a fan, and special techniques prevent one hot cell from spreading. Charging in Australia comes from a grid running 100% renewable energy. When the ship enters service as a ferry between Argentina and Uruguay, a 40-minute charge will be different. Currently, Uruguay has about 92% of its power from renewable sources. Argentina still uses mostly natural gas, but 42% of its electricity is sourced from renewable generation.

The ship is 130 meters (426 feet) long, mostly aluminum, and has a reported capacity of 2,100 people and 225 vehicles per trip. Ferry service is perfect for electric ships — the distance is short, and it’s easy to schedule time to charge. Like all electric vehicles, though, the batteries won’t stay at full capacity for long. Typical ship design calls for a 20-year service life, and it’s not uncommon for a vessel to remain in service for 30 or even 40 years. But experts expect the batteries on the ferry will need to be replaced every 5 to 10 years.

While electric ferries may become common, we don’t expect to see electric cargo ships plying the ocean soon. Diesel is hard to beat for compact storage and high energy density. There are a few examples of cargo ships using electric, though. Of course, that doesn’t mean you can’t build your own electric watercraft.

Continue reading “What Has 5,000 Batteries And Floats?” →

BIOS Detectives Find Ghost Of Previously Unknown PC

November 8, 2025 by 2 Comments

Old parts such as EPROMs will often find themselves for sale on sites such as eBay, where they are sometimes snapped up by retrocomputing enthusiasts in search of interesting code. Vintage Computer Federation forum member [GearTechWolf] picked up a clutch of IBM-labelled chips, and as int10h reports, stumbled upon a previously unknown PC-AT BIOS version which even hints at a rare PC model as yet unseen.

The IBM AT and its various versions are extremely well known in the retro PC world, so while this was quickly identified as an IBM BIOS from 1985 and narrowed down to a member of the AT family, it didn’t fit any of the known versions which shipped with the ubiquitous 1980s computer. Could it have been from an industrial or rack mount variant? It’s a possibility, but the conclusion is that it might contain a patched BIOS version of some kind.

Lacking real hardware, it happily boots on an emulator. It’s another piece of the PC historical jigsaw for people interested in computer history, and with luck in time someone will unearth an example of whatever it came from. If you find it, try a modern OS on it!