- casualSTEM
- Posts
- Pupae Purge | Printed Vision | Gold-in Eye
Pupae Purge | Printed Vision | Gold-in Eye
Issue #234
Imagine my dismay when I realized a polar vortex is not an arctic-bear-themed whistling football!
—Steve 🐻❄️
Get the weekly email that explains science in sweatpants. Stay smart for free.
Pupae Purge
Even ant pupae are willing to sacrifice themselves for the colony. But younglings of the Lasius neglectus ant species need help in saving the queen.
Sick pupae release odor, telling workers they’re ill
Workers isolate the infected and inject their poison
Killing and disinfecting the pupae
Adult ants with similar infections practice social distancing and self-exile to preserve the colony. Queen pupae however, are born with an advanced immune system that fights off diseases their subordinates self-sacrifice for. So metal.
Maybe the queen should share some ANTivirus software — learn more here
Printed Vision
Human vision is now printable. A (formerly) legally blind person can see after receiving a 3D-printed corneal implant.
Implant grown from human corneal cells
1 donor cornea generated 300 implants
Tech can also print cardiac tissue, liver, and kidney cells
This breakthrough application is the long-term result of the first 3D-printed cornea developed in 2018. Paving the way to address a global shortage of donor corneas. I see, I see.
st3v is currently working on 2D-printed corneas — See more of the real thing
👁️ Reminds me of another high-tech eye-tech we looked into 👁️
Gold-in Eye
Injecting gold into your eye could protect your vision. Researchers are developing a nanoparticle to shield light-induced damage.
Act as micro-filters to shield photoreceptor cells
Compatible w/ eye tissue thanks to silica coating
Reduced light exposure-vision loss in mice
Stabbing your eye with gold may seem drastic, but researchers compare the procedure to gene therapies which can be harder to scale. Before you update your ID to reflect your new “gold” eye color, human trials are not yet in sight.
See what eye did there??? — Go for gold

I read The Rundown every morning, I think you’ll like it!
Learn AI in 5 minutes a day
This is the easiest way for a busy person wanting to learn AI in as little time as possible:
Sign up for The Rundown AI newsletter
They send you 5-minute email updates on the latest AI news and how to use it
You learn how to become 2x more productive by leveraging AI
*please check out my sponsors

Clickables
😤 Why we have 2 nose holes instead of 1
🦟 Mosquitos finally provide a benefit — 3D printing nozzle
⚡️ Typing as a power source (xkcd YouTube)
🦆 Birds don’t get frostbite thanks to high-tech feet
🚿 Clickbait: Human washing machine replaces showers

st3v on site
2D-Vision

Steve made this in Procreate
2D-printing an eye was relatively simple. No one told st3v it needed to be able to see anything 🤦.
How was today's email? |

Master ChatGPT for Work Success
ChatGPT is revolutionizing how we work, but most people barely scratch the surface. Subscribe to Mindstream for free and unlock 5 essential resources including templates, workflows, and expert strategies for 2025. Whether you're writing emails, analyzing data, or streamlining tasks, this bundle shows you exactly how to save hours every week.
*please support my sponsors

Claim your sunglasses!
Sharing is caring…and also unlocks cool shades 😎
You currently have 0 referrals, only 3 away from receiving casualSTEM Sunglasses!.

or simply forward this email and tell them to click the “Subscribe Now” button in the intro! (or this one 👇️)
currently available in US only

New to the casualSTEM?
Get the weekly email that explains science in sweatpants. Stay smart for free.
Missed last week’s science in sweatpants?
Catch-up here: 🔬Brain Eras | Armlessss | Poop Patrol
I'd love to hear from you!
Reply to this email, I'd love to hear your thoughts and suggestions!




Reply