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MIT engineers develop a magnetic transistor for more energy-efficient electronics

Transistors, the building blocks of modern electronics, are typically made of silicon. Because it’s a semiconductor, this material can control the flow of electricity in a circuit. But silicon has fundamental physical limits that restrict how compact and energy-efficient a transistor can be.MIT researchers have now replaced silicon with a magnetic semiconductor, creating a magnetic transistor that could enable smaller, faster, and more energy-efficient circuits. The material’s magnetism strongly

This Week’s Awesome Tech Stories From Around the Web (Through April 4)

Artificial IntelligenceHow AI Helped One Man (and His Brother) Build a $1.8 Billion CompanyErin Griffith | The New York Times ($)“From his house in Los Angeles, Mr. Gallagher, 41, used AI to write the code for the software that powers his company, produce the website copy, generate the images and videos for ads and handle customer service. …This year, they are on track to do $1.8 billion in sales.”ComputingThe First Quantum Computer to Break Encryption Is Now Shockingly CloseKa

Better quantum computing stock: D-Wave Quantum vs. Rigetti Computing

These companies possess potent technologies, but one looks like the superior investment.

Startup lets researchers mine blockchain tasks on a quantum computer for the first time

Built with advice and hardware access from D-Wave, the testnet has drawn 13,000 sign-ups and early work from six research teams, but remains an experimental environment rather than a live mainnet.

Brian Armstrong Pledges Personal Oversight to Future-Proof Bitcoin Against Quantum Threats

Brian Armstrong has put himself personally on the line for Bitcoin quantum resistance, pledging direct oversight of Coinbase’s post-quantum cryptography research and implementation efforts at a moment when the threat has moved from theoretical to time-stamped.The commitment signals that Coinbase is no longer treating quantum risk as a long-range problem ...

Useful quantum computers may need as few as 10,000 qubits

Researchers from Caltech and Oratomic, a Caltech-linked startup, published findings on March 31, 2026, arguing that a useful ...

Here's what 'cracking' bitcoin in 9 minutes by quantum computers actually means

Google's quantum paper made headlines with that number. Here's what it means, what's actually at risk, and why 6.9 million bitcoin are more exposed than the rest.

The first quantum computer to break encryption is now shockingly close

Traditional encryption methods have long been vulnerable to quantum computers, but two new analyses suggest a capable enough machine may be built much sooner than previously thought

MemQ raises $10M to advance scalable distributed quantum networking

Quantum networking solutions startup memQ Inc. today announced it raised $10 million in early-stage funding to advance ...

Quantum entanglement between electrons and ions captured at attosecond timescale

Quantum mechanics is extremely successful at describing the behavior of matter at the atomic level. This success forces one ...

Show HN: An MCP server for Devops automation

I’ve been building Canine for about 2 years now, and have slowly grown it to about ~1000 developers using it for deploying all sorts of apps / projects / etc. Amazingly, the whole thing is still able to run on a single 48GB Hetzner VPS. Think of it basically like Coolify, for Kubernetes. I previously posted about it here: https://news.ycombinator.com/item?id=44292103Recently, we added MCP capabilities to canine, and I was shocked how well it worked. It basically is able

Show HN: AI-first PostgreSQL client for Mac

"Can you check if this user is on the premium plan?" "I have a support ticket on Mr.Bean, saying he cannot login... Can you have a look?" "How many subscriptions did we have today?" ...As senior SWE at Twenty.com (open source CRM), I had these quite often.Every day I needed to check something in Postgres, I had to wait 30 seconds for DBeaver to load or fight pgAdmin's UI. So I built Paul. Yes our database configuration has too many schemas (3000 schemas) for th

Show HN: Tool to extract root cause from Spring Boot logs

I created this to address a specific annoyance when using Spring Boot in CI.When a test fails in GitHub Actions, you often get thousands of log lines. The main error message is usually something vague, like “Failed to load ApplicationContext.” The real root cause is often buried deeper in the stack trace.In my case, I was troubleshooting a failure due to a missing property:defined in application.properties (app) But missing in the test configuration.The log contained around 15,000 lines, and I

Scaling tool orchestration data will emerge different intelligence and LLMs

Tldr: We are only now gonna start to scale long term external orchestration, everything beforehand was mostly internal problem solving training with here and there a tool call. We don't actually know yet what scaling orchestration training produces. It might produce much better tool-using assistants that remain fundamentally reactive to human instructions. Or it might produce something with more emergent autonomy. My gut feeling tells me the second. For the first time I foresee in the near

Show HN: Notion Calendar Wrapper Linux (tray, libnotify notifications)

Nothing earth shattering but I just moved from windows and was missing this.Notion Calendar in Electron, aimed at Linux: minimize-to-tray instead of quit, calendar notifications routed through notify-send/libnotify (with join/default actions where the payload allows), window state, and a tightened main/preload setup (sandbox, context isolation, navigation limits). Tested on Ubuntu 24.04 + KDE; no macOS/Windows builds.Upstream: https://github.com/dusansimic&#x2F

Show HN: Web Push Notifications for Hacker News

I built a little tool that lets you subscribe to posts, comments and users and get notified when they change.<p>It needs an account on val.town, but that&#x27;s about it.<p>Also note, for top stories it can get quite chaotic.

Microscopic mechanism of 'quantum collapse' in real-world environments uncovered for the first time

A research team has, for the first time in the world, elucidated the microscopic mechanism by which quantum order is lost and collapses in "open quantum environments" existing in nature. Since perfectly isolated quantum systems cannot exist in reality, this study is expected to provide a decisive breakthrough in bridging the gap between ideal quantum theory and quantum technologies that must operate in real-world environments.

MXene breakthrough boosts conductivity 160x with perfect atomic order

A new breakthrough is transforming MXenes—ultra-thin, high-tech materials—into something far more powerful and precise. Researchers have developed a cleaner, more controlled way to build these materials using molten salts and iodine, eliminating the messy chemical processes that once left their surfaces disordered. The result is a perfectly arranged atomic structure that lets electrons flow with remarkable ease, boosting conductivity by up to 160 times.

Dying stars are devouring giant planets, astronomers discover

Dying stars may be wiping out nearby giant planets as they expand into red giants. Astronomers found that these close-in planets become increasingly rare around more evolved stars, suggesting many have already been swallowed. The likely cause is a gravitational tug that drags planets inward until they break apart or fall into the star. It’s a dramatic glimpse into the chaotic final stages of planetary systems.

Students found a star from the dawn of the universe drifting into the Milky Way

A group of undergraduate students stumbled into a cosmic time capsule—one of the oldest stars ever discovered—while combing through massive astronomy datasets. What began as a class project quickly turned into a breakthrough when they spotted an extraordinarily “pristine” star made almost entirely of hydrogen and helium, hinting it formed near the dawn of the universe.