Feynman Mindmap
See the big picture. Know where to start.
Upload what you're studying. Ritsu maps the key ideas, how they connect and where to begin — then explains and checks your understanding node by node.
Free account · Sized to your material · A check on every node
The big picture
Thirty-eight slides. Seven main branches. One place to start.
35 slides, in the order they were taught
Every branch folds and unfolds. The whole map stays in view.
The material didn't get smaller. The uncertainty did.
Zoom out first. See the major ideas, how they connect, and the route through them.
Then open only the branch you're ready to work on.
Structure first. Details second.
Free account · Sized to your material · A check on every node
Sound familiar?
When everything looks important, nothing tells you what to do first.
Maybe you've been here:
- A syllabus, twelve lectures and three PDFs — all open, none really started.
- You fell behind, so every possible starting point feels arbitrary.
- You know hundreds of flashcard facts but can't see the subject they belong to.
- You've watched tutorial after tutorial and still can't see how the pieces fit together.
- You're switching into a new field and everything seems to depend on everything else.
You don't necessarily need another source.
You probably don't need to read faster.
You need structure before detail.
See what the material is made of first. Then every chapter, definition and formula has somewhere to fit.
Don't start with more information. Start with a map of the information.
Inside a node
Don't just map the material. Learn your way through it.
Practice again clears the answers — the tick stays.
ATP synthase
ProcessThe rotary motor that spends the gradient
ATP synthase is a rotary enzyme sitting in the inner mitochondrial membrane. Protons pushed into the intermembrane space by the electron transport chain flow back through it — and that flow turns the enzyme, the way water turns a mill wheel.
Each turn presses a phosphate onto ADP: ADP + Pᵢ → ATP. Think of the proton gradient as stored energy; ATP synthase is the motor that spends it.
What directly drives ATP synthase to rotate?
Read it. Check it. Tick it off.
Every node gives you the idea in plain language, then asks you to prove you got it.
As you work through the map, it stops being a picture of the material and becomes a picture of your progress through it.
You don't just see what's there. You see what's still left.
Free account · Sized to your material · A check on every node
Why “Feynman”?
Each node explains the idea in plain language — the way you'd explain it to someone who hasn't read the source yet.
Then the check question makes sure the simple explanation didn't merely feel clear.
What's inside
One map. Three jobs.
Orient
See the shape
Find the main ideas, their relationships, and the place to begin.
Evolution
Hardy–Weinberg equilibrium
FormulaHardy–Weinberg describes a population that is not evolving: no selection, no mutation, no migration, random mating, a large population. If allele frequencies are p and q, genotype frequencies fall into one line.
Understand
Open the node
Read a plain-language Feynman explanation of the idea, including formulas and important relationships from your source.
Biology 101 — Unit 1: Foundations
The unit as one structure: what a cell is made of, how it powers itself, how traits and molecules carry information, and how life changes, connects and stays alive.
22 of 43 nodes completed · 51%
Track
Check your progress
Answer the node's question, earn the tick, and see which parts you've covered and which are still waiting.
- Up to 60 nodes
- Feynman explanations
- Formulas typeset
- 1–2 checks per node
- Progress that sticks
A table of contents tells you what's in the material. This tells you where you are in it.
Built from your material
Built from your material. Nothing padded in just to make the map bigger.
Ritsu builds the structure, explanations and checks from the source you provide.
A short handout should produce a smaller map. A dense chapter should produce a deeper one.
Auto · Sizes the map to the document — one node per idea worth owning.
Auto 8–60 · Concise 15–22 · Standard 25–40 · Comprehensive 40–60 · Same map, three sources. Watch the count track the material.
Sized to the source
Auto sizing lands a map between 8 and 60 nodes and tracks the document — or choose Concise, Standard or Comprehensive and get that band.
Every node explains and checks
A plain-language explanation on each node, formulas typeset, and one or two check questions — multiple choice or true / false, graded the same way every time.
Progress that sticks
Your first answer to each question is the one that counts. A node ticks when every answer is right, and the tick stays even when you practise it again.
It can show you what's unfinished. It doesn't decide when those concepts should come back.
The map shows what's left. Ritsu turns it into what to do next.
Your unticked nodes are already a specific list of what still needs work. Ritsu turns those gaps into the next things to learn, practise and review — then brings them back before they fade.
- Understand
- Retrieve
- Practice
- Get feedback
- Review
- Master
Questions
What people ask before their first map.
A file (PDF, DOCX, Markdown, text, images, slides or a notebook), a YouTube link, a website, or pasted text of at least 200 characters. The map is built from that material only.
One more time
Turn the thing you're avoiding into a path you can follow.
Drop in the chapter, lecture, PDF or video that's been sitting in front of you.
See the big picture first. Then work through it one node at a time.
Free account · Sized to your material · A check on every node
- File
- YouTube
- Website
- Paste text
Your material. Your map. Your progress.