Haptic Displays Bring Sports To The Vision Impaired

When it comes to the majority of sports broadcasting, it’s all about the visual. The commentators call the plays, of course, but everything you’re being shown at home is on a screen. Similarly, if you’re in the stadium, it’s all about getting the best possible view from the best seats in the house.

Ultimately, the action can be a little harder to follow for the vision impaired. However, one company is working hard to make sports more accessible to everyone. Enter OneCourt, and their haptic sports display technology.

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Big Chemistry: Glass

Humans have been chemically modifying their world for far longer than you might think. Long before they had the slightest idea of what was happening chemically, they were turning clay into bricks, making cement from limestone, and figuring out how to mix metals in just the right proportions to make useful new alloys like bronze. The chemical principles behind all this could wait; there was a world to build, after all.

Among these early feats of chemical happenstance was the discovery that glass could be made from simple sand. The earliest glass, likely accidentally created by a big fire on a sandy surface, probably wasn’t good for much besides decorations. It wouldn’t have taken long to realize that this stuff was fantastically useful, both as a building material and a tool, and that a pinch of this and a little of that could greatly affect its properties. The chemistry of glass has been finely tuned since those early experiments, and the process has been scaled up to incredible proportions, enough to make glass production one of the largest chemical industries in the world today.

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Illustrated Kristina with an IBM Model M keyboard floating between her hands.

Keebin’ With Kristina: The One With The Schreibmaschine

Choc switches on a ThumbsUp! v8 keyboard with IBM Selectric typewriter keycaps, thanks to some 3D-printed adapters.
Image by [Sasha K.] via reddit
Remember that lovely Hacktric centerfold from a couple Keebins ago with the Selectric keycaps? Yeah you do. Well, so does [Sasha K.], who saw the original reddit post and got inspired. [Sasha K.] has more than one IBM Selectric lying around, which is a nice problem to have, and decided to strip one of its keycaps and get to experimenting.

The result is a nice adapter that allows them to be used with Kailh chocs — you can find the file on Thingiverse, and check out the video after the break to see how they sound on a set of clicky white chocs.

Those white chocs are attached to a ThumbsUp! v8 keyboard, a line that [Sasha K.] designed. His daily driver boards are on v9 and v10, but the caps were getting jammed up because of the spacing on those. So instead, he used v8 which has Cherry MX spacing but also supports chocs.

As you can see, there is not much to the adapter, which essentially plugs the Selectric keycap’s slot and splits the force into the electrical outlet-style pair of holes that chocs bear This feels like an easier problem to solve than making an adapter for MX-style switches. What do you think?

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LTA’s Pathfinder 1: The Dawn Of A New Age Of Airships?

Long before the first airplanes took to the skies, humans had already overcome gravity with the help of airships. Starting with crude hot air balloons, the 18th century saw the development of more practical dirigible airships, including hydrogen gas balloons. On 7 January 1785, French inventor, and pioneer of gas balloon flight Jean-Pierre Blanchard would cross the English Channel in such a hydrogen gas balloon, which took a mere 2.5 hours. Despite the primitive propulsion and steering options available at the time, this provided continued inspiration for new inventors.

With steam engines being too heavy and cumbersome, it wasn’t until the era of internal combustion engines a century later that airships began to develop into practical designs. Until World War 2 it seemed that airships had a bright future ahead of them, but amidst a number of accidents and the rise of practical airplanes, airships found themselves mostly reduced to the not very flashy role of advertising blimps.

Yet despite popular media having declared rigid airships such as the German Zeppelins to be dead and a figment of a historic fevered imagination, new rigid airships are being constructed today, with improvements that would set the hearts of 1930s German and American airship builders aflutter. So what is going on here? Are we about to see these floating giants darken the skies once more?

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Deep Space DX Hack Chat

Join us on Wednesday, March 5 at noon Pacific for the Deep Space DX Hack Chat with David Prutchi!

In the past 70-odd years, the world’s space-faring nations have flung a considerable amount of hardware out into the Void. Most of it has fallen back into Earth’s gravity well, and a lot of what remains is long past its best-by date, systems silenced by time and the harsh conditions that rendered these jewels of engineering into little more than space flotsam.

Luckily, though, there are still a few spacecraft plying the lonely spaces between the planets and even beyond that still have active radios, and while their signals may be faint, we can still hear them. True, many of them are reachable only using immense dish antennas.

join-hack-chatNot every deep-space probe needs the resources of a nation-state to be snooped on, though. David Prutchi has been listening to them for years using a relatively modest backyard antenna farm and a lot of hard-won experience. He’s been able to bag some serious DX, everything from rovers on Mars to probes orbiting Jupiter. If you’ve ever wanted to give deep space DX a try, here’s your chance to get off on the right foot.

Our Hack Chats are live community events in the Hackaday.io Hack Chat group messaging. This week we’ll be sitting down on Wednesday, March 5 at 12:00 PM Pacific time. If time zones have you tied up, we have a handy time zone converter.

FOSDEM 2025, A Hardware Hacker’s Haven

Have you been to FOSDEM? It’s a yearly two-day megaconference in Brussels, every first weekend of February. Thousands of software and hardware hackers from all across Europe come here each year, make friends, talk software and hardware alike, hold project-specific meetups to drink beer and talk shop, and just have a fun weekend surrounded by like-minded people.

In particular, FOSDEM has free admission – drop by for the weekend, no need to buy entry tickets, just sort out your accomodation, food, travel, and visit for a day or two. I’ve covered FOSDEM quite extensively in 2023, so if you want to know more about how it works, I invite you to check out that article – plenty of stories, cool facts about FOSDEM, showcases, and so on. This year, I’ve also been to FOSDEM, it’s been pretty great, and I’d like to tell you about cool things I’ve seen happen during FOSDEM 2025.

FOSDEM is often described as an open software conference, and you might’ve had been fooled by this if you simply have checked the Wikipedia page. However, let me assure you – there’s always plenty of hardware, large amounts of it! This year, I feel like hardware has taken the spotlight in particular – let me show you at least some of it, so that you know what kinds of cool stuff you can expect and plan for in 2026.

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