2D Coulomb Gas Simulator
Learning and science
physics simulation
SHOW HN2026
How HN took it
1 positive, 1 neutral or asking, 1 mixed, 3 critical, out of 6 comments about the project. Thread score -0.14.
Performance: 0 for, 3 againstDesign: 1 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Fun to play with and mesmerizing visuals
From 2 comments
Awesome! Beautiful work. Mesmerizing, even
bizzyskillet on HNNote 1: I had to go to the middle and reduce the number of particles to 1000 to be able to run it in my phone. Note 2: In this case, 2D means that the force is proportional to…
gus_massa on HN
Objections
Runs poorly on phones and high particle or steps settings can stall mobile browsers
From 3 comments
Note 1: I had to go to the middle and reduce the number of particles to 1000 to be able to run it in my phone. Note 2: In this case, 2D means that the force is proportional to…
gus_massa on HNWarning: if you increase the steps per frame it will break your phone. At least with my iPhone and Safari it stalls the entire phone.
zeitgeistcowboy on HNYes, the web page persists through reboots. You have to painfully force quit Safari by going through the motions of the gestures, wait for the phone to respond, and then quit…
xattt on HN
Higher-power potentials like z^20 cause numerical instability with NaNs
From 1 comment
I got better results with N=100, and the time and frames bars at the top in the middle. It reach the equilibrium in ~5 seconds, so it's easy to test and compare the different…
gus_massa on HN
Requests
Option to switch between 2D and 3D force laws for comparison
From 1 comment
Note 1: I had to go to the middle and reduce the number of particles to 1000 to be able to run it in my phone. Note 2: In this case, 2D means that the force is proportional to…
gus_massa on HN
Better defaults for phones
From 1 comment
1: Sorry about that, the default 20,000 is to make it look nice on computers but I should probably drop it a bit for phones, that's reasonable. 2: Yeah this part is important and…
swesnow on HN
Questions
Whether a 3D potential gives uniform density like the Ginibre potential
From 2 comments
1: Sorry about that, the default 20,000 is to make it look nice on computers but I should probably drop it a bit for phones, that's reasonable. 2: Yeah this part is important and…
swesnow on HNI got better results with N=100, and the time and frames bars at the top in the middle. It reach the equilibrium in ~5 seconds, so it's easy to test and compare the different…
gus_massa on HN