Many courses are available for free, though some require a Google Cloud subscription.
Dogecoin Foundation’s commercial arm has acquired a majority stake in US Triestina 1918 in a push for broader DOGE adoption, starting with sports.
BitMine chairman Tom Lee said he expects Ethereum to enter a supercycle, making the current price an attractive risk vs reward purchase.
Apple is responding to user feedback on its new Liquid Glass design with a setting that lets users choose between Clear and Tinted appearances. Introduced in iOS 26.1 beta 4, the option gives users more control over interface opacity after complaints that Liquid Glass made some elements harder to read.
Read more When Liam Fedus announced he was quitting OpenAI, VCs swarmed. One even wrote a love letter. Here’s how Felicis’ Peter Deng won the deal.
Read more Leaders of the country’s governments announced they would work together to secure critical minerals supplies outside of Chinese control. The deal includes a new gallium refinery in Western Australia.
Read more New data from Similarweb shows Meta AI’s mobile app is surging in popularity, jumping from 775,000 to 2.7 million daily active users in just four weeks. The app is now seeing roughly 300,000 new installs per day — up from under 200,000 previously.
Read more The Department of Energy said it was canceling grants to build new factories in places like Alabama and Kentucky. Three startups are affected.
Read more Download the pattern for Dancing Ribbons here.
Yoder recommends printing the pattern on paper in between normal printer paper and cardstock in weight, making sure it folds in straight lines (not too thick), folds back and forth easily on the same line (not too thin), and is crisp enough to make a satisfying snapping noise when you shake it. Her favorite paper isSkytone, which is commonly used to print certificates and fancy envelopes.
Watch the video tutorial on folding Dancing Ribbons here.
Yoder’s detailed folding instructions:
Once you have your crease pattern on a sheet of paper, cut out the hexagon that contains the pattern. Yoder recommends using a straightedge and blade on a cutting mat instead of scissors, whether that means an X-Acto knife and a ruler on a sheet of cardboard or a quilting ruler and rotary cutter on a fabric cutting mat.
The next step is folding the background grid of black lines that the pattern uses as references. Assuming you’ve cut out your hexagon precisely, you can use the edge of the hexagon and the printed lines to make your creases, or you can fold as if there were no lines printed by folding the hexagon in half (edge to opposite edge) and then folding those edges in to the center to make quarter lines, first in one direction and then in the other two. After each set of folds, it’s a good idea to fold the new lines back the other way to make the paper easier to work with later. After folding the quarters, fold the eighths in each direction, and finally the 16ths. Yoder presses the creases with a bone folder to make them easier to work with and to minimize stress on her hands.
You can choose at this point whether to fold the pattern one twist at a time or to precrease the off-grid creases (just crease the short segments that have been printed, folded as mountains on the printed side of the pattern) and collapse everything all at once. Beginning folders may find it helpful to precrease the triangle and rhombus twists, to make the squashing process easier, even if you plan to fold the pattern one twist at a time. Solid red lines in the crease pattern represent mountain folds, and dashed blue lines represent valley folds. The faded lines inside the twists are helper folds used to set up the twists; they will not be used in the final pattern.
The central closed hexagon twist will be the first twist folded, and it’ll be made on the blank side of the paper. All the mountain folds for this twist (as viewed on the blank side of the paper) will be on grid lines going to the corners of the hexagon, and the valley folds will be one grid spacing above the mountains on the right-hand side of the paper. To fold the twist, set up both the mountain and valley folds of one pleat; then pass that pleat counterclockwise into your other hand before setting up both folds of the next pleat. Keep all pleats folded and the center of the paper elevated as you work your way around the center, eventually folding all six pleats (use your table to keep the pleats folded, or use clips at the edge of the paper) and forming a hexagonal tower in the center of the paper. Make the pleats more flat, working from the edges in, until this hexagon tower is two grid spacings high. Then grab the tower and give it a sharp counterclockwise twist to get it to lie flat. This twist almost never lies down completely flat right away, so lift each pleat slightly to make sure the valley folds have stayed on grid lines to help the central hexagon to smooth out.
Once the hexagon has been folded, flip the paper over to the printed side. Take the mountain fold of one pleat and split it into a three-way intersection of mountain folds evenly spaced around a point two grid spacings out from the closed hexagon hole. This point is the center of the closed triangle twist, which can be squashed to create the triangle of off-grid creases once the two new pleats are folded over in a clockwise direction (as printed). To squash the triangle twist, press gently on each of the three pleats just outside the point where the valley fold of one pleat contacts the mountain fold of the next pleat. This will start to flatten the central triangle, which can then be pressed from the top to smooth it out and finalize the new creases.
Fold each of the triangle twists in the same way (causing pleats to overlap with pleats from other triangles), in a counterclockwise order around the central hexagon (this order makes the overlapping pleats easier to work with later).
Once the triangles have all been folded, find a place where two pleats from triangle twists are overlapping and open up the overlap so you can see all the parts of the paper (leaving the triangle twists folded). Use the printed folds to set up a rhombus twist, and then press the twist flat from the top once all the folds in the pleats are set up.
Repeat this step with all six of the pleat overlaps (if you followed the recommended sequence for the triangles, only one overlap will be in a different order from the rest) to complete the pattern.
This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.
This retina implant lets people with vision loss do a crossword puzzle
The news: Science Corporation—a competitor to Neuralink founded by the former president of Elon Musk’s brain-interface venture—has leapfrogged its rival after acquiring a vision implant in advanced testing for a fire-sale price. The implant produces a form of “artificial vision” that lets some patients read text and do crosswords, according to a report published in The New England Journal of Medicine today.
How it works: The implant is a microelectronic chip placed under the retina. Using signals from a camera mounted on a pair of glasses, the chip emits bursts of electricity in order to bypass photoreceptor cells damaged by macular degeneration, the leading cause of vision loss in the elderly. Read the full story.
—Antonio Regalado
How will flowers respond to climate change?
Flowers play a key role in most landscapes, from urban to rural areas. Yet flowers have much more to tell in their bright blooms: The very shape they take is formed by local and global climate conditions.
The form of a flower is a visual display of its climate, if you know what to look for. In a dry year, its petals’ pigmentation may change. In a warm year, the flower might grow bigger. The flower’s ultraviolet-absorbing pigment increases with higher ozone levels.
Now, a new artistic project sets out to answer the question: As the climate changes in the future, how might flowers change? Read the full story.
—Annelie Berner
This story is from our forthcoming print issue, which is all about the body. If you haven’t already, subscribe now to receive future issues once they land.
2025 climate tech companies to watch: Redwood Materials and its new AI microgrids
Over the past few years, Redwood Materials has become one of the top US battery recyclers, joining forces with the likes of Volkswagen, BMW, and Toyota to process old electric-vehicle batteries and recover materials that can be used to make new ones.
Now it’s moving into reuse as well. Redwood Energy, a new branch of the company, incorporates used EV batteries into microgrids to power energy-hungry AI data centers. Read the full story.
—Peter Hall
Redwood Materials is one of our 10 climate tech companies to watch—our annual list of some of the most promising climate tech firms on the planet. Check out the rest of the list here.
The must-reads
I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology.
1 AWS is recovering from a major outage
It’s racing to get hundreds of apps and services back online. (The Verge)
+ Snapchat, Roblox and banking services are among those affected. (The Guardian)
2 OpenAI made—then retracted—a claim it had made a major math breakthrough
After math experts and rival AI firms ridiculed its poorly-worded declaration. (TechCrunch)
+ What’s next for AI and math. (MIT Technology Review)
3 The grave costs of Trump’s war on climate science
It’s affecting the accuracy of forecasting systems globally, not just in the US. (FT $)
+ Trump himself led an effort to derail plans to tax shipping pollution. (Politico $)
+ How to make clean energy progress under Trump in the states. (MIT Technology Review)
4 China claims the US is behind a cyberattack on its national time center
It says it has years’ worth of irrefutable evidence of data stealing. (Reuters)
+ US experts allegedly exploited vulnerabilities in mobile phones belonging to National Time Service Center workers. (Bloomberg $)
5 Is AI-generated art real art?
It’s a question gallery and museum curators across the world are debating. (NYT $)
+ Artisan craftmakers are happy to resist the pull of AI. (FT $)
+ This tool claims to trace how much of an AI image has been drawn from existing material. (The Guardian)
+ From slop to Sotheby’s? AI art enters a new phase. (MIT Technology Review)
6 Chipmaker Nexperia has accused its ousted CEO of spreading falsehoods
Zhang Xuezheng reportedly claimed it was operating independently in China. (Bloomberg $)
7 This whistleblower raised concerns about the safety of US data under DOGE
And says the hostile reception to his complaint led to him leaving his dream job. (WP $)
+ DOGE’s tech takeover threatens the safety and stability of our critical data. (MIT Technology Review)
8 Aid agencies have been criticized for using AI “poverty porn”
But the NGOs say its use protects the identities of real people in social media campaigns. (The Guardian)
9 EVs lose their value much faster than gas-powered cars
Which isn’t exactly an incentive for prospective first-time buyers. (Rest of World)
10 What happens to our brains when we dream 
We’re learning more about the many liminal states they can slip through. (Quanta Magazine)
Quote of the day
“Hoisted by their own GPTards.”
—Meta’s chief AI scientist Yann LeCun pokes fun at OpenAI after the company walked back its claim it had made a major math breakthrough in a post on X.
One more thing
One option for electric vehicle fires? Let them burn.
Although there isn’t solid data on the frequency of EV battery fires, it’s no secret that these fires are happening.
Despite that, manufacturers offer no standardized steps on how to fight them or avoid them in the first place. What’s more, with EVs, it’s never entirely clear whether the fire is truly out.
Patrick Durham, the owner of one of a growing number of private companies helping first responders learn how to deal with lithium-ion battery safety, has a solution. He believes that the best way to manage EV fires right now is to let them burn. But such an approach not only goes against firefighters’ instincts—it’d require a significant cultural shift. Read the full story.
—Maya L. Kapoor
We can still have nice things
A place for comfort, fun and distraction to brighten up your day. (Got any ideas? Drop me a line or skeet ’em at me.)
+ It looks as though the sumo wrestlers who visited London last week had the best time.
+ The Chicago rat hole may not have been made by a rat after all.
+ Finally, a good use for AI—to help me pick a perfectly ripe avocado 
+ Keith Richards, we love you!