Toothpaste made from hair provides natural root to repair teeth
Toothpaste made from your own hair may offer a sustainable and clinically effective way to protect and repair damaged teeth. In a new study published today, scientists discovered that keratin, a protein found in hair, skin and wool, can repair tooth enamel and stop early stages of decay. The King’s College London team of scientists […]
Walkie-Textie Wireless Communicator
Walkie-Textie Wireless Communicator 29th July 2025 The Walkie-Textie is a simple handheld device with a 12-key keypad and OLED display that allows you to send and receive text messages using the LoRa wireless protocol. It’s ideal for situations where there’s no mobile signal, such as when you’re camping or hiking in a remote area, when you […]
Eliminating JavaScript cold starts on AWS Lambda
How? Enter Porffor Porffor is my JS engine/runtime that compiles JavaScript ahead-of-time to WebAssembly and native binaries. What does that actually mean? You can compile JS files to tiny ( hi (12.9KB) ~$ du -h hi 16K hi ~$ ./hi hello blog! Node and Bun offer “compile” options, but they bundle their runtime with your […]
Figma’s Multiplayer Technology (2019)
When we first started building multiplayer functionality Multiplayer Editing in Figma Today’s public release of Figma contains two long-awaited changes. in Figma four years ago, we decided to develop our own solution. No other design tool offered this feature, and we didn’t want to use operational transforms (a.k.a. OTs), the standard multiplayer algorithm popularized by […]
Anthropic’s CEO says in 3-6 months, AI will write 90% of the code (March 2025)
Business Insider tells the innovative stories you want to know Business Insider tells the innovative stories you want to know Business Insider tells the innovative stories you want to know Business Insider tells the innovative stories you want to know Business Insider tells the innovative stories you want to know Business Insider tells the innovative […]
The Cutaway Illustrations of Fred Freeman
During the two-year research for our book LOOK INSIDE we discovered many amazing illustrations and artists that, for one reason or another, did not make it into the final version of the book. It would be a pity to leave these forgotten on a drawer, so during the next few weeks we will present here […]
DBCrust – A modern database CLI
A modern database CLI that speaks your language. DBCrust combines the speed of Rust with intelligent features like context-aware autocompletion, SSH tunneling, Vault integration, and powerful Django ORM analysis. Whether you’re debugging production issues, analyzing data, or optimizing Django applications, DBCrust provides an unmatched developer experience. 🤖 Proudly crafted with Claude Code — where AI […]
Candle Flame Oscillations as a Clock
Todays candles have been optimized for millenia not to flicker. But it turns out when we bundle three of them together, we can undo all of these optimizations and the resulting triplet will start to naturally oscillate. A fascinating fact is that the oscillation frequency is rather stable at ~9.9Hz as it mainly depends on […]
Once Again, Oil States Thwart Agreement on Plastics
Diplomats from around the world concluded nine days of talks in Geneva — plus a marathon overnight session that lasted into the early hours of Friday — with no agreement on a global plastics treaty. During a closing plenary that started on Friday at 6:30 a.m. — more than 15 hours after it was originally […]
Everything I know about good system design
I see a lot of bad system design advice. One classic is the LinkedIn-optimized “bet you never heard of queues” style of post, presumably aimed at people who are new to the industry. Another is the Twitter-optimized “you’re a terrible engineer if you ever store booleans in a database” clever trick. Even good system design […]