If any of you missed last week’s edition, sorry some tech glitches 😢
If you got this, just pls click below and reply “the engineer in you solved it”.
Last week I threw out a challenge: hit me with your best engineering band names.
And WOW, you nerds delivered.

Crimp Bizkit. Electric Jelly. Post-tensioned Guitars.
I'm literally crying over here 😆
You're all winners in my book.
Every single one of you magnificent engineering dorks.
This week too, we have a different mystery surprise.
And it’s restricted to the first 15 people who respond!
Want to be featured in the next edition? And win the mystery gift?
Reply with the answer to this:
Engineering "This or That":
Pick the RIGHT answer for each scenario:
Question 1: To maximize heat dissipation in a CPU heatsink, engineers use fins that are:
Thin and closely spaced OR Thick and widely spaced?
Question 2: In a suspension bridge, to handle tension forces in the main cables, engineers prefer:
High tensile strength steel OR High compressive strength concrete?
Question 3: When designing a flywheel for energy storage, to maximize stored energy, engineers place most of the mass:
Near the outer rim OR Near the center hub?
Know the answers? Just reply with your picks and you might win that mystery prize.
Want to reach an audience of over 80k engineers? Click here to book a call with me to see how we can partner to help!
What Happened This Week?
1. They Built an Underwater Rocket That Generates Power from Ocean Waves
Ocean waves are out there carrying ridiculous amounts of energy and we just...surf on them? Dutch company Symphony Wave Power figured out how to catch it with something that looks like an underwater rocket.
The whole system sits underwater where nobody can see it. There’s a core bolted to the ocean floor and a hull that bobs up and down. Between them is this rubber membrane filled with liquid and air.
Waves roll over, pressure changes, hull moves up and down. This pushes liquid through a turbine that works both ways (liquid goes up, turbine spins. Liquid goes down, turbine still spins). The generator makes electricity.
And it gets cooler: they tuned the system’s internal spring to match ocean wave rhythms. When everything moves at the same frequency, you extract way more energy. Like pushing someone on a swing at just the right moment.
They’re claiming 500% better efficiency than designs that don’t bother tuning.
Two moving parts total. Made from recyclable material. Drop it with small boats, barely mess with the seafloor. Once it’s down there it just works for years.
Chain 60 together and you get six megawatts. That’s enough for remote islands or offshore platforms.
They’ve passed dry testing, and it hits the North Sea next year. Guess we won’t need AI to remove wind turbines that photobomb ocean views 😂
2. Scientists Built E-Paper That Beats Your Retina (25,000 Pixels Per Inch)
Every display keeps moving closer to your eyes until you hit a wall: your eyeball has limits.
Researchers just smashed past that limit with electronic paper hitting 25,000+ pixels per inch. Your iPhone? 450 PPI. This is 55 times denser.
They made tiny disks out of tungsten oxide: think microscopic metal coins smaller than a virus. When you zap them with electricity, lithium atoms rush in and the disks change from see-through to dark. It's like millions of switchable windows you control individually, each one flipping in 40 milliseconds.
Here's why this beats regular screens: OLED pixels actually emit light, so shrinking them makes them dimmer and harder to see. These disks just reflect whatever light hits them, like paint. Shrink them down to nothing and they still reflect light just as bright.
They recreated Klimt's "The Kiss" on a display 1.9mm × 1.4mm - that's 1/4,000th the size of your phone screen but with 4,300 × 700 pixels packed in there.
Power usage? Almost nothing because the pixels remember their color when you cut power. I now know what new Promotion XDR nano display Apply is working on for their new VR headset 😆
Our eyes just became the bottleneck?
They Put a Microchip in Someone's Eye and Now They Can Read Again
Okay so I need you to understand how insane this is.
Engineers just made blind people READ AGAIN by putting a 2mm chip under their retina and connecting it to AI-powered glasses.
Not "see shadows" or "detect movement." ACTUALLY READ. Like, read books and crossword puzzles.
84% of the trial participants could recognize letters, numbers, and words after getting this implant. Before surgery, many couldn't even see the vision chart AT ALL.
The engineering problem that seemed impossible
Here's what happens with dry age-related macular degeneration (AMD): the light-sensitive cells in your macula, the central part of your retina, just die off. You lose central vision completely while keeping peripheral vision.
Around 5 million people globally have this, and until now there was NO treatment. Zero. You just go blind and that's it.
The photoreceptors (the cells that convert light into electrical signals)? Gone. The retinal pigment epithelium (the support layer that keeps photoreceptors alive and functioning)? Dead. You’re left with a black disc in the center of your vision.
Every approach to fix this has failed because you can't just grow new photoreceptors.
The brain-computer interface hiding in your eye
The PRIMA implant is basically a 2mm × 2mm microchip (literally the size of a SIM card) that they slide under your central retina during a vitrectomy (procedure where they remove the eye’s gel-like structure to access the retina).
Here's why I'm fanboying: you wear augmented-reality glasses connected to a waist-worn computer. The glasses' camera captures what you're looking at and projects it as an INFRARED BEAM onto the chip.
The chip has 378 photodiodes that convert the infrared light into electrical pulses. These pulses stimulate the remaining retinal neurons, which send signals through your optic nerve to your brain.
But here's the best part: they use AI algorithms to convert the camera feed into optimized electrical patterns that your brain can actually interpret as vision.
The learning curve nobody expected
But here's the thing, your brain has to LEARN how to see through this system. Rehabilitation takes months. You have to practice scanning text, adjusting zoom levels, teaching your visual cortex to interpret these new signals.
It's like learning to read all over again, except your brain is decoding electrical pulses from a silicon chip instead of photoreceptors.
Why this is a completely new era
The surgery takes under two hours and can be done by any trained vitreoretinal surgeon. Participants could read an average of five lines on a vision chart. FIVE LINES.
And their peripheral vision? Completely preserved. No degradation.
This part of AI is one I’m only getting more and more excited to see go further!
Your next adventure?
⦁ Aerospace Engineer (Terran R): Relativity Space (Long Beach, CA)
3D-printing rockets from scratch because apparently buying them off the shelf is too mainstream.
⦁ Quality Inspector - Arsenal-1 Manufacturing: Anduril Industries (Columbus, OH)
Making sure defense tech doesn't explode (unless it's supposed to) before shipping it to people who really need it not to explode.
Want to post a job to an audience of over 80k engineers? Click here to book a call with me to see how we can partner to help!