The Quantum World
Like Duolingo, but for The Quantum World. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free forever · No credit card · iPhone & Android

Key ideas in The Quantum World
- Energy is delivered in individual packets rather than a continuous stream
- Electrons disappear from one energy level and reappear in another instantly
- There is a minimum 'dose' of energy that cannot be divided further
- There is no 'in-between' state or path during a quantum leap
- The 'smoothness' of energy in daily life is an illusion caused by the sheer number of tiny packets
- Atomic states are fixed positions on a 'staircase' rather than a slide
- The discrete nature of energy packets versus continuous flow
- The instantaneous nature of electron transitions
- The term refers to a specific quantity or 'count' of something
- It represents the limit of how small a physical property can be broken down
- Solid matter is composed of 'jumpy' particles that only look still at our scale
- The stability of objects comes from the arrangement of discrete energy packets
- Our senses blur individual quantum events into a single, solid-feeling experience
- Quantum objects do not have a single fixed position
- Definition of the term 'Quantum' as a fundamental unit
- Subatomic particles spread out over a region of space like a wave
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Quantum World the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
How does an electron move between different energy levels in an atom?
Get it right to open this lesson and 9 more in the app.
Where The Quantum World takes you
Discover the strange rules that govern the universe at its smallest scale, where objects can be in two places at once and everything is connected.
- 1
The Rules of the Very Small
- The Quantum Leap
- Particles That Act Like Waves
- 2
Connections and Consequences
- The Spooky Connection
- The Power of Looking
2 sections · 4 units · 10 levels. Built to play, not to enroll.
You pick the voice
The Quantum World is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start The Quantum World today.
Download Tomo, search The Quantum World, and play your first lesson in under a minute.