Top all-time · #9124
CasualPhysicsEnjoyer
Personal blog · chillphysicsenjoyer.substack.comscience
CasualPhysicsEnjoyer writes Casual Physics Enjoyer, a personal blog at chillphysicsenjoyer.substack.com about science. Since 2025, 8 different Hacker News readers have linked it 121 times, most often “Being Maximally Useful Whilst Commuting”. It is still writing: the last post was on 2026-10-29, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link this blog's DIY experiment posts: a DIY air filter that filters PM2.5, which one commenter built, and a UV light experiment on yeast, with a part 2 follow-up.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Testing to see if good science can be done at home.
Most-linked posts?
- Being Maximally Useful Whilst Commuting2 people · 2 mentions · first linked 2026-02-09
- So I got an EEG: A weekend measuring my brainwaves2 people · 2 mentions · first linked 2026-01-26
- Autonomous Buying of Experiment Equipment2 people · 2 mentions · first linked 2026-08-07
- Measuring My DIY Air Purifier2 people · 2 mentions · first linked 2025-09-27
- A Man I Want to Meet the Most2 people · 2 mentions · first linked 2025-12-03
- The Entropy of a Markov Chain2 people · 2 mentions · first linked 2026-07-28
- Bio-Theory Lab Notes2 people · 2 mentions · first linked 2026-01-24
- How to Select an Experiment2 people · 2 mentions · first linked 2026-09-30
- Using Linear Algebra to Predict a Non-Linear Pendulum2 people · 2 mentions · first linked 2025-12-13
- A New Experiment Meta-Strategy2 people · 2 mentions · first linked 2026-09-15
What Hacker News says?
I recently found this blog post about an effective DIY air filter - explicitly filters pm2.5 https://chillphysicsenjoyer.substack.com/p/measuring-my-diy-... I built one (< $50) and I'm pretty happy with the results. As someone with a life long sensitivity to air quality, the air definitely feels cleaner.
Comment linking /p/measuring-my-diy-air-purifier
on “Studies increasingly find links between air pollutants and dementia”Submitted You’re a slow thinker. Now what? as a story · 557 points
HN discussionPart 2: https://chillphysicsenjoyer.substack.com/p/my-uv-experiment-...
Comment linking /p/my-uv-experiment-worked
on “Blasting Yeast with UV Light”Submitted Making chicken transparent using Dorito dust as a story · 353 points
HN discussionSubmitted I made a quieter air purifier as a story · 131 points
HN discussionSubmitted Blasting Yeast with UV Light as a story · 82 points
HN discussionSubmitted Measuring My DIY Air Purifier as a story · 75 points
HN discussionSubmitted Noise cancelling a fan as a story · 74 points
HN discussionSubmitted Frying Eggs and Air Quality Tests as a story · 72 points
HN discussionSubmitted Testing a cheaper laminar flow hood as a story · 64 points
HN discussionSubmitted Liesegang Rings as a story · 50 points
HN discussionSubmitted A New Experiment Meta-Strategy as a story · 34 points
HN discussionSubmitted I managed to grow countable yeast colonies as a story · 32 points
HN discussionSubmitted Coulomb's law remains tricky to test at home as a story · 29 points
HN discussionSubmitted How to Select an Experiment as a story · 10 points
HN discussionSubmitted AI Is Not Going to Kill My Love of Math as a story · 7 points
HN discussionSubmitted You Are Fucked If You Can't Write Clearly. And That's Pretty Scary. as a story · 6 points
HN discussionSubmitted Computational chemistry, Locally? My rant on SSH as a story · 4 points
HN discussionSubmitted How I Fixed My Headaches as a story · 4 points
HN discussionSubmitted When Is a Complex System Stable? as a story · 4 points
HN discussionSubmitted Results from Blasting Yeast with UV Light as a story · 4 points
HN discussionSubmitted Non Equilibrium Statistical Mechanics and Biology as a story · 4 points
HN discussionSubmitted How to Select an Experiment: More on experiment metastrategy as a story · 3 points
HN discussionSubmitted Liesegang Rings as a story · 3 points
HN discussionSubmitted Possibly Resolving a Conjecture on Matrix Theory with GPT Sol as a story · 3 points
HN discussionSubmitted What counts as a replication?: I'm confused about how we validate science now as a story · 3 points
HN discussionSubmitted How to Read Something as a story · 3 points
HN discussionSubmitted Making Rayleigh-Bénard Convection Cells as a story · 3 points
HN discussionSubmitted Using Linear Algebra to Predict a Non-Linear Pendulum as a story · 3 points
HN discussionSubmitted A Man I Want to Meet the Most as a story · 3 points
HN discussion