Build an interactive 3D electromagnetic induction simulator with Codex
He built a 3D physics simulator with Codex where you drag a magnet, tweak the coil and watch the induced current respond, then open-sourced it for others to fork.
Source
@jesseqin_ on X · 2026-10-18
Written in our own words. Credit to the original author. Link checked 2026-10-18.
What they did
He built a 3D physics simulator with Codex where you drag a magnet, tweak the coil and watch the induced current respond, then open-sourced it for others to fork.
Result (as claimed)
Open source and playable in the browser.
Tools they used
Cost: OpenAI Codex: free plan, paid from $8/mo. Checked 2026-10-14.
Set it up
Gather your sources
Collect the papers, notes, links or files you want to work from in one place.
Load them into the tool
Open OpenAI Codex and add your sources. Keep the original files so you can check claims later.
Ask focused questions
Ask for summaries, comparisons or connections with citations to the source passages.
Verify and save
Spot check claims against the sources, then save the output as notes you can reuse.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Build an interactive 3D electromagnetic induction simulator with Codex What the original author did: He built a 3D physics simulator with Codex where you drag a magnet, tweak the coil and watch the induced current respond, then open-sourced it for others to fork. Reported result (as claimed by the author): Open source and playable in the browser. Source: https://x.com/jesseqin_/status/2111843730860769750 Tools they used: OpenAI Codex Category: Research & learning Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Build an interactive 3D electromagnetic induction simulator with Codex What the original author did: He built a 3D physics simulator with Codex where you drag a magnet, tweak the coil and watch the induced current respond, then open-sourced it for others to fork. Reported result (as claimed by the author): Open source and playable in the browser. Source: https://x.com/jesseqin_/status/2111843730860769750 Tools they used: OpenAI Codex Category: Research & learning Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Build an interactive 3D electromagnetic induction simulator with Codex What the original author did: He built a 3D physics simulator with Codex where you drag a magnet, tweak the coil and watch the induced current respond, then open-sourced it for others to fork. Reported result (as claimed by the author): Open source and playable in the browser. Source: https://x.com/jesseqin_/status/2111843730860769750 Tools they used: OpenAI Codex Category: Research & learning Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
The Daily 5
Get five new use cases tomorrow morning
Free. Real sources. Unsubscribe any time.
Guides for this use case
How to run multiple coding agents together ยท How to make 3D scenes and models with AI and Blender
Related use cases
Join an open math research run with Codex or Claude Code
Auto Research tracks community pull requests that improve the key numbers in OpenAI's 2026 math preprints, starting with integer multiplication below n log n. It gives you a copyable prompt to point Codex or Claude Code at the latest bound, test an improvement and submit a reproducible contribution.
Run an autonomous science loop in Claude Code for three days with Codex checking the evidence
A creator ran an autonomous science workflow in Claude Code for three days straight, with Codex driving it and checking the evidence each round. The loop is open source on GitHub.
Compare what AI coding agents really cost, with a pricing change log
A builder made a tracker that puts 18 coding tools (Cursor, Claude Code, Copilot, Codex and more) side by side and logs every pricing change with sources.
Use one Obsidian vault as shared memory for eight AI agents
Claude Code, Codex, Grok Bot and five more agents share one Obsidian vault as memory. Every night an agent fixes outdated facts and links loose notes.