Hacker News with Generative AI: Engineering

Mechazilla has caught the Super Heavy booster (twitter.com)
Device uses wind to create ammonia out of air (ieee.org)
Lots of green energy experiments in the lab publish impressive results—but what’s more impressive is when those results come from an actual on-site pilot demonstration in the real world. That’s the case with new research that is able to generate ammonia out of thin air, without requiring an external power source.
Why did Saturn V have fins? (stackexchange.com)
Servo vs. steppers: Speed, Torque and Accuracy [video] (youtube.com)
Zuck: Meta will start replacing mid-level engineers with AI as early as 2025 [video] (youtube.com)
Largest compressed air energy storage facility starts operation in China (ess-news.com)
A 300 MW compressed air energy storage (CAES) power station utilizing two underground salt caverns in central China’s Hubei Province was successfully connected to the grid at full capacity, making it the largest operating project of the kind in the world.
Innovative ways to float skyscraper-sized wind turbines (mena-forum.com)
Record-tall Wind Turbine Towers with 3D-printed Concrete Bases were in the news a few years back. Today, here are six innovative ways to float skyscraper-sized wind turbines. These enormous turbines can reach up to 240m tall—about the size of a skyscraper. Since they are so tall, strong winds far above the sea surface tend to cause the turbine to tilt, so platform designs focus on minimising this tilt while still being cost-competitive with other forms of energy.
China plans to build 'Three Gorges dam in space' to harness solar power (scmp.com)
A senior Chinese scientist has revealed an ambitious plan to use super heavy rockets to build solar power stations in space, calling it “another Three Gorges Dam project above the Earth”.
Donut Lab's next-generation in-wheel motors (donutlab.com)
Greater torque and power. Lower cost and weight.
The engineering behind the San Antonio River Walk (practical.engineering)
I am on location in downtown San Antonio, Texas, where crews have just finished setting up this massive 650-ton crane. The counterweights are on. The outriggers are down. And the jib, an extension for the crane's telescoping boom, is being rigged up. This is the famous San Antonio River Walk, a city park below street level that winds around the downtown district.
The Egg, an at Home Nuclear Reactor (enron.com)
The heat-resistant casing is engineered to withstand extreme temperatures, ensuring unmatched durability and safety. Designed for peak performance, it protects the reactor’s core while maintaining optimal thermal efficiency—even in the harshest conditions.
Six Sins of Platform Teams (serce.me)
Bird-inspired drone uses legs to walk and jump into the air (ieee.org)
On the shores of Lake Geneva in Switzerland, École Polytechnique Fédérale de Lausanne is home to many roboticists. It’s also home to many birds, which spend the majority of their time doing bird things.
Can American Drivers Learn to Love Roundabouts? (bloomberg.com)
They save lives, reduce traffic delays and cut emissions. Still, communities often resist them. Can cities get drivers to turn the corner on circular intersections?
Enron Egg (enron.com)
The heat-resistant casing is engineered to withstand extreme temperatures, ensuring unmatched durability and safety. Designed for peak performance, it protects the reactor’s core while maintaining optimal thermal efficiency—even in the harshest conditions.
Raising of Chicago (wikipedia.org)
During the 1850s and 1860s, engineers carried out a piecemeal raising of the grade of central Chicago to lift the city out of its low-lying swampy ground.
Ratchet effects determine engineer reputation at large companies (seangoedecke.com)
How do engineers become higher-status or lower-status at large tech companies? In other words, what determines who gets promoted and who doesn’t, or who gets assigned the exciting difficult work and who gets put on keep-the-lights-on maintenance duty?
Show HN: Optics Challenge – Design a solar concentrator for a non-round sun (nonimaging-conference.org)
The challenge: Design a reflective solar concentrator with the highest possible efficiency, but designed for a sun with the shape "XX" instead of the regular round shape.
In 2025, People Will Try Living in This Underwater Habitat (ieee.org)
The future of human habitation in the sea is taking shape in an abandoned quarry on the border of Wales and England.
Endless Runway (wikipedia.org)
An endless runway is an aircraft runway which loops around to form a shape such as a circle.
Being a career-obsessed engineer wasn't the optimal way to be fulfilled (strategizeyourcareer.com)
The tech world moves fast—why shouldn’t your career?
The Evolution of Tunnel Boring Machines (2023) (construction-physics.com)
Tunneling is an important technology for modern civilization, as a tunnel is often the only reasonable way to create a direct path between two points.
University of Alabama Engineer Pioneers New Process for Recycling Plastics (news.ua.edu)
Plastic recycling is commonplace but imperfect. Part of the problem, says Dr. Jason Bara, is that current processes yield lower-quality plastics with reduced value and fewer end uses. In a circular plastic economy, any plastic could be broken down to its component parts and then reconstituted into new products with little or no waste.
The 2025 AI Engineer Reading List (latent.space)
We picked 50 paper/models/blogs across 10 fields in AI Eng: LLMs, Benchmarks, Prompting, RAG, Agents, CodeGen, Vision, Voice, Diffusion, Finetuning. If you're starting from scratch, start here.
Making a DIY CNC machine with limited tools [video] (youtube.com)
Documenting an 1115 ft radio tower climb (jeffgeerling.com)
Some broadcast engineering tasks are a bit too daunting for me to consider. Climbing the massive towers that power radio and TV stations is one of them!
Dropbox Engineering Career Framework (dropbox.github.io)
The Engineering Career Framework is your source for how to achieve impact for your role and team and how to grow in your engineering career.
Systems Ideas That Sound Good but Almost Never Work – "Let's Just " (learningbyshipping.com)
Some engineering patterns that sound good but almost never work as intended
AI Engineering Reading List (latent.space)
We picked 50 paper/models/blogs across 10 fields in AI Eng: LLMs, Benchmarks, Prompting, RAG, Agents, CodeGen, Vision, Voice, Diffusion, Finetuning. If you're starting from scratch, start here.
Scale Model of Boeing 777-300ER, Made from Manila Folders (lucaiaconistewart.com)
This project traces its beginnings to an architecture class in high school where we learned to use manila file folders to roughly model our building ideas.