Tesla surprised owners and enthusiasts this morning when it added a new item to its online store. A balance bike designed for children aged two to five debuted unexpectedly. There is no battery, motor, or pedals, just a lightweight frame and two wheels intended to teach young riders the most important skill on two wheels.

The bike’s frame is made of magnesium, which keeps the overall weight low enough for even the tiniest children to handle. The white finish is appealing, and the black accents on the seat and other elements complement it well. The Tesla logo runs along the side, while the T logo is clearly displayed in the front for all to see. You may also move the seat to one of five different locations as your youngster grows taller. This bike is designed for children, with a minimum leg length of 13.7 inches and a maximum weight capacity of 77 pounds.

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• WHY YOU NEED IT?- With the no pedals bicycle, child will learn balance and steering, boost self-confidence, which makes transitioning to a pedal bike…

Kids use the bike as intended, by sitting on the seat and pushing off the ground with their feet. They can cruise at their own pace, and as their confidence grows, they can try lifting both feet off the ground and gliding. The low center of gravity and broad handlebar make it seem very stable from the first ride; no training wheels are required, and there are no sophisticated brakes to worry about; and the greatest thing is that parents may accompany them the entire time.

The bike itself costs $225, which is quite expensive, but keep in mind that it is a luxury product made of premium materials such as magnesium. Other manufactures provide similar bikes for roughly the same price, but their magnesium versions are a step above in terms of appearance and feel. You’ll get a set of tools to assist you put everything together, and most families can have it up and running in under an hour. The bike was in high demand; the listing sold out in a matter of hours, and new orders will not be shipped until late August, when they are back in stock. If you live in Canada, be prepared to pay a little extra, around $310, but the specifications don’t change.

This isn’t the first time Tesla has dabbled in children’s products, having previously collaborated on a Cyberquad ATV and a toy Model Y radio flyer, but this time they’ve gone for something a little more low-key, as the bike is pretty basic, just getting kids riding and having fun without all of the bells and whistles.

As he instructs bilingual learners in the humanities and social studies, Daniel Gomez sees big promise in artificial intelligence.

“Teachers in general cannot be knowledgeable about every single subject,” and certainly not in multiple languages, says Gomez, who teaches at the bilingual K-12 Ideal School in Tampa, Florida. AI can help close the gaps. “It will be able to pick up any topic students are interested in and handle the topic reasonably well.”

He isn’t alone in this assessment. Harvard researchers, for example, are actively exploring how AI-powered chatbots can support bilingual student learning and parent–child dialogues.

“There are lots of opportunities to use AI to adapt learning materials into different languages, which can expand access for bilingual learners,” says Ying Xu, an assistant professor of education at Harvard and one of the researchers involved in the work.

“Some projects are also exploring how AI can provide additional scaffolding to help children comprehend content in their home language,” she adds. “For example, a multilingual language model might keep the core learning content in English while offering explanations, prompts or supports in the child’s home language.”

Experts see great potential for AI to elevate bilingual education — if it’s done right.

Chatbots as Educational Aids

“Bilingual learners are obviously learning the language and culture of the classroom and the environment that they’re in,” says Krystle Salas, assistant director of special populations at Second Mile, which operates alternative education charter schools for at-risk students in several states.

“They don’t necessarily have access to the instructional materials or even just the conversations going on in the classroom — and certainly not at the level of their peers,” she continues. And teachers may not have the experience or the tools to scaffold the necessary supports for these students.

AI can help teachers to be more effective, and it can help bilingual learners thrive. A chatbot “can give [students] pieces of the content in Spanish or give them smaller sentences that are simpler,” Salas says.

Chatbots can also help bilingual students build confidence. “Maybe I don’t want to talk in English in front of other people, but I’ll talk in English to the chatbot because the chatbot doesn’t care if I’m doing it wrong,” says Melissa Henning, the K-12 educational content manager at The Source for Learning.

“You can have a conversation with the chatbot about what you meant to say and what came out, and it can help you rephrase it,” she adds. “That can really empower you as a multilingual learner.”

Gomez sees a role for AI in helping young learners master the concepts being taught in the classroom. Perhaps the chatbot will teach it to them in their native language, but that’s alright. Students can get a handle on the materials, “and later on we can worry about knowing whether [they] also know the word” in English, he adds.

Chatbots can be a boon, too, because of their 24/7 availability. Although there are many ways to master learning materials, they don’t help “if you are not actively practicing,” Gomez says. Especially for those learning in a foreign language, AI’s ever-present availability creates more opportunities for practice.

Using SchoolAI, education strategist and ISTE Certified Educator Stephanie Howell has seen the benefits of AI firsthand. Students use it as a “guide on the side,” annotating as they read, she adds, “and if they don’t know a word, they can go over to the AI and say, ‘Explain this to me in another way.’ It creates that self-awareness skill. I’m not the one always finding the words that they need help with.”

As a second- and third-grade intervention specialist at Lancaster City Schools in Ohio, she’ll create a learning activity and tell the AI, “When they get it wrong the first time, I don’t want you to super-scaffold for them. I want them to have that productive struggle. But if they miss it a second time, I want you to provide a sentence starter.”

And she’s using AI herself to support her students. As a co-teacher, she’ll take what the main teacher has assigned and break it down, asking AI, “What vocabulary in this article might my students struggle with?” or “Help me analyze the patterns that you notice.” This gives her greater insight and more time in the day to focus on one-on-one learning and other high-value strategies.

Chatbots as Family Engagement Tools

Chatbots can also help close the gap for students who otherwise wouldn’t be able to talk fully about their schoolwork at home.

“A lot of parents speak Spanish. Their kids are coming home with this English stuff, and they don’t speak [the language]. Rather than having students speak in both languages, they can actually use both languages at the same time to build concepts,” with the chatbot translating simultaneously, Henning says.

“A lot of times the students are stronger English speakers than their parents,” she continues. With help from a chatbot, “they can engage in dialogue, positioning the home language as an asset rather than a barrier.”

Teachers can foster this. With their prompting, “a bot could send a family a nightly question tied to the day’s lesson, like ‘Ask your child about the bravest thing this character did in the book,’” she adds. “That gives non-English-speaking parents a way to have a conversation about that content.”

Best Practices for Using Chatbots

For schools looking to leverage chatbots in support of bilingual learners, experts say it’s important to move ahead thoughtfully. They need to be careful about “the unintended consequences of widening existing gaps,” Xu says.

“For example, many AI systems are still less accurate at recognizing bilingual children’s speech, especially when children have accented speech or dialectal variation or are moving between languages,” she adds.

As a result, “bilingual learners may benefit less from these tools if the system cannot accurately understand their speech,” she continues. “This concern also applies to the use of AI for assessment, where dialectal variation or accented speech could lead to inaccurate evaluation.”

Then there’s the digital divide to consider, since students will need access to the chatbots for any of this to work. “You want to make sure that we’re not widening the gap because they don’t have devices available at home or they don’t have internet at home,” Henning says.

Howell encourages teachers to make intelligent use of AI’s built-in multilingual capabilities. With some tools, “[students] can actually start typing in Spanish if I don’t set up the requirement to stay in English,” she adds.

That can be helpful, but it needs to used thoughtfully. “Sometimes as a teacher, I can’t have my students go back and forth because they have to learn it in English,” she continues. “It always goes back to the learning goal.”

Educators also need to be mindful about the AI models their chatbots are using. Tools may be trained on academic language, but students need to tackle school subjects informally as well. The AI should suit the need.

“If we need more technical vocabulary or something that is more prone to be used on an everyday basis, we can train it to do that,” Gomez says. “We can customize it to our needs.”

And the teacher’s voice should always be the most prominent. “Even though AI can be a very valuable tool — it can help with a great many things — you always need that human touch,” he adds.

At Second Mile, Salas echoes this notion. “Children need that human interaction,” she says. “A teacher can read their emotions; they can see the full context of the situation and adjust in real time. And AI can make mistakes, so we always want to make sure the majority of the instruction and support is coming from the humans.”

The big picture: Traditional DRAM and memory manufacturers have been forced to allocate nearly all of their production capacity toward supporting massive AI data center projects. Every other device requiring memory chips is now a secondary priority, but China-based companies could soon turn these unprecedented market conditions upside down.

According to a new report from Citrini Research, ChangXin Memory Technologies (CXMT) is growing much faster than expected. The Chinese memory and IDM manufacturer is expected to produce between 350,000 and 375,000 DRAM wafers per month by the end of 2026. In 2020, CXMT had a capacity of 40,000 WPM for DDR4 production. By the end of 2025, the company had reached a quarterly output of 720,000 wafers.

The new research highlights the growing presence of Chinese DRAM manufacturers amid ongoing semiconductor supply chain challenges and Big Tech’s AI data center expansion. The traditional “Big Three” memory manufacturers are US-based Micron, along with South Korean giants Samsung and SK Hynix. If CXMT can reach 375,000 WPM in 2026, its production capacity would be comparable to Micron’s.

Citrini researchers explain that CXMT can add manufacturing capacity faster than memory makers in other parts of the world. Funding is no longer the primary obstacle, as AI companies have driven memory prices and profits sharply higher. The major constraint affecting CXMT and other Chinese manufacturers is now access to advanced semiconductor manufacturing equipment, which is far more difficult to export legally from the EU to China.

DRAM products “made in China” are quickly gaining ground in Western markets. Memory companies such as Corsair are increasing their reliance on CXMT-produced chips, providing a potential escape from the “unprecedented” prices affecting today’s DDR5 memory products.

Citrini said CXMT could eventually expand its production capacity to 950,000 WPM by 2030, becoming China’s largest memory manufacturer and one of the biggest memory producers in the world. CXMT still lacks the capability to produce high-performance memory such as HBM products or even high-end DDR5 modules designed for extreme overclocking.

Even if CXMT DRAM modules are not the fastest available, they could still bring a major shift to a struggling memory market where Big Tech and AI companies have left little room for affordable custom PC builds or gaming consoles. As a result, some users are increasingly looking toward a Chinese memory manufacturer as a potential alternative, arguing that AI-driven demand from Western technology companies is making many consumer electronics products significantly more expensive.

It’s a hot one at both microphones, as Elliot Williams and Kristina Panos wilt in the heat with ice lollies and freezer packs. But still, we persevered long enough to make a podcast.

In Hackaday news, Supercon is on! It’s going down in Pasadena, California, but the talks will be somewhere slightly larger, with a courtyard instead of an alley. Get your talk proposals in now! In other Hackaday news, we still have our Frikkin’ Lasers Contest going on until Thursday, July 23rd.

Interestingly enough, we got a comment on an older article from none other than [Michael J. Van de Graaff], whose grandfather invented the Van de Graff generator and was “quite upset” when plans for a DIY version appeared in Scientific American. And finally, Google Earth’s desktop client is being discontinued, but you can still travel the globe on your phone, or in your PC’s browser.

Not only do we have another triple mailbag this week, we have another failed attempt at guessing the Sound by Kristina. However, [Alexander] knew that it was CD-ROM drive a-spinnin’. Speaking of What’s That Sound, be sure to let us know your ideas for the new prize.

That sounds like a lot of preamble, but we quickly get to a full slate of hacks, a couple of which are pretty retro in retrospect. Check out the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Download in lovely MP3.

Episode 378 Show Notes:

News:

Mailbag:

• Two-fer! [Jonathan Comer] has many ideas for generating random numbers when it comes to rolling for the What’s That Sound winner, and [Paul Clyne] wants to know how to get a jolly wrencher sticker.

Interesting Hacks of the Week:

Quick Hacks:

• Elliot’s Picks:
• Kristina’s Picks:

Can’t-Miss Articles:

TCL has spent years saying inkjet-printed OLED could improve image quality, efficiency, lifespan, and manufacturing costs. Back in 2024, the company was still showing prototype laptop panels and promising a “comprehensive breakthrough” once the technology was ready for commercial products.

Two years later, it has finally arrived in a gaming laptop. Lenovo’s new Legion R9000P uses a 16-inch panel that TCL CSOT describes as the world’s first inkjet-printed OLED display integrated into a laptop.

What makes inkjet-printed OLED different?

Traditional OLED manufacturing deposits light-emitting material inside expensive vacuum equipment using highly precise metal masks. Inkjet printing places the organic material directly onto the panel in controlled patterns, much like a printer laying ink onto paper.

TCL says the process is simpler, wastes less material, and could make OLED panels cheaper to manufacture at scale. Earlier company estimates claimed a 20% reduction in total cost, better light efficiency, and a longer material lifespan.

The Legion’s panel has a 240Hz refresh rate and covers more than 99% of the DCI-P3 color gamut. Its standard RGB stripe layout should produce sharper text and reduce the colored edges sometimes visible around letters on OLED screens using triangular subpixel arrangements.

What hardware could Lenovo put behind it?

Lenovo has not revealed the laptop’s processor, graphics card, pricing, or release date. Previous R9000P models suggest it will sit somewhere between the upper mid-range and premium gaming segments. The 2024 version paired a Ryzen 9 7945HX with an RTX 4060, while the 2025 Ultimate Edition offered a Ryzen 9 9955HX3D and RTX 5080.

An RTX 5080 alongside a current AMD or Intel processor is possible if Lenovo wants to give the new display a flagship debut. R9000P models are commonly sold internationally under the Legion Pro 5 family, though Lenovo has not confirmed any global plans yet.