Chris Ferrie
@csferrie.com
Work: quantum learning and control. Play: writing words and code. #1 best-selling science author for kids. https://csferrie.com
I recently appeared in Petr Lebedev's new video on Cosmic Fine-tuning. youtu.be/oi91kE_wocs?...
The Most Controversial Idea In Physics
YouTube video by SciencePetr
youtu.be
How quick are your <bra|ket> skills? I turned an old card game into an app: bra-kets.replit.app.
⟨B|raket|S⟩
bra-kets.replit.app
I used to pay $600 and now enjoy a "100% savings." How much am I paying? In the new math, here's how you figure it out. $600/$600 = 1×100% rise. So if the price is $600 and drops to $600, that's a 100% savings.
When Einstein developed general relativity the closest thing to a practical application that could even be imagined at the time was a slightly more precise description of where to look for the planet Mercury in the sky, and yet now we’d all be literally lost without it. Anyway: fund basic research.
Mike Boylan-Kolchin@mbkplus.bsky.social · 4mo agoGPS satellites move at 1/100000 the speed of light, causing their clocks to tick slower by 7 microseconds per day, and orbit at a height that makes their clocks tick faster by 45 microseconds per day. Two relativistic effects, both at the 1 part in 10 billion level, both essential for GPS accuracy 🧪
Before you read on, comment what you think the A in sonar stands for. csferrie.medium.com/what-does-th...
What does the A in sonar stand for?
This is the sort of question that starts as a harmless curiosity and ends with two grown adults arguing like children on a naval history…
csferrie.medium.com
McDoing is a great term to describe the modern trivialization of existentialism as consumable performance. Anguish is content, commitment is a vibe.
Amos Posner@amosposner.bsky.social · 4mo agoThere is no McTry.
Game idea: reverse of LIFE. Instead of building a family, you spend the whole game trying to get your teenagers to leave the house with enough confidence to fail somewhere else.
You’ve seen me harping about bureaucracy for over a decade. My colleagues have always seen me as a troublemaker for it. But now here we are, paralyzed and poisoning our children. It’s finally boiled over. csferrie.medium.com/for-teens-so...
For teens, social media isn’t the problem. You are.
Attention Conservation Notice. A 2000-word lukewarm take about modern life drowning in accountability theatre. We no longer fix problems…
csferrie.medium.com
Apropos of nothing at all, please enjoy this game. Goal: collect tacos, books, and lattes while avoiding guns, red hats, and foxes. codepen.io/csferrie/ful...
PSA: nothing about quantum entanglement is faster than light. Popular quantum physics in a nutshell: Make stupid assumptions, win stupid conclusions.
Government™️: making things difficult only for those that already followed the rules. james.cridland.net/blog/2025/au...
More on ARC job cuts & restructure: ARC’s spending $374k on consultants for organisational “review” & “planning & development”. They’re also spending $765k on “risk management”. That’s $1.1 million on consultants being spent over 1 year. Un. Believable. Slow clap, ARC.
My nephew (age 3.5) is coming to visit my lab next week and his top priority is checking whether or not I have all the items in @csferrie.com's "Goodnight Lab." I made sure I know where the multimeter is and I found a spectrometer down the hall so he won't think I'm a fraud! 📘🧪😂
"Los terraplanistas son el extremo de un espectro del fraude que puede sonar divertido sin ser peligroso, pero cuando el fraude entra en la medicina puede tener consecuencias catastróficas" _ @csferrie.com
Lazy parenting hack. Chop up fresh veggies and just leave them out. The kids eat three times as many servings as they avoid during meal time.
You do not want to be one of my open tabs to the right of this one.
It's easy to forget that #SciComm is for people of ALL ages, not just adults and teenagers. But is there an age that's too young? NOPE! (1/7) 🧪
Quantum beer "night" with Wish You Were Beer Show going live in two hours (that's 8PM ET and 11AM AEDT). www.youtube.com/live/BSNTPVX...
Quantum Beer Night with Dr. Chris Ferrie!
YouTube video by Wish You Were Beer Show
youtube.com
Blog post: "Actually, you can't test if quantum uses complex numbers" algassert.com/post/2501 I doom the concept of that 2021 Nature paper by showing how to compile any distributed quantum protocol into real-only gates while preserving locality.
🚀 New book: The Curiosity Chronicles — a pick-your-quest science adventure! See the plot map + extras: thecuriositychronicles.com Build your own with my free Adventure Builder: csferrie.com/adventure-bu... #STEM #KidLit
Replacement rubber foot for a Microsoft Surface Laptop and the packaging it came it...
If you want something done right, do it yourself. Rant/tool to instantly generate QR codes 👇 csferrie.com/blog/an-actu...