Quantum Physics: The World of the Small
Like Duolingo, but for Quantum Physics: The World of the Small. 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.
95 levels across 8 sections, about 190 minutes end to end, roughly 38 days at five minutes a day. It moves through The Quantum Surprise, The Rules of the Small, The Building Blocks, Observing the Unobservable, Quantum Mechanics in Action, Modern Technology Powered by Quanta, The Future: Quantum Computing & Beyond, and Deep Theory & Interpretations. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Quantum Physics: The World of the Small
- The universe is 'pixelated' rather than perfectly smooth
- Matter and energy are not infinitely divisible
- Physical reality has a fundamental minimum scale
- The concept of graininess versus infinite smoothness in the physical world
- Subatomic particles don't have fixed, definite paths like large objects
- Quantum objects can exist in multiple states or locations at once
- Large-scale 'common sense' rules are actually just averages of chaotic quantum behavior
- The breakdown of classical intuition at the subatomic scale
- Energy is absorbed or emitted in fixed amounts, not any arbitrary value
- The act of measurement forces a quantum system to 'choose' a single state
- A 'quantum' is the smallest possible unit of a physical entity
- Observation collapses multiple possibilities into one reality
- Energy is delivered in specific, countable amounts
- Light behaves as a stream of individual particles (photons) rather than just a continuous wave
- Quantum mechanics explains why matter takes up space and doesn't collapse
- Modern technology relies on the predictable behavior of quantum particles
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 Quantum Physics: The World of the Small 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.
Imagine you are cutting a piece of matter into smaller and smaller bits. Does this process of dividing go on forever, or do you eventually hit a final 'grain'?
Get it right to open this lesson and 94 more in the app.
Where Quantum Physics: The World of the Small takes you
Explore the strange and beautiful laws that govern the subatomic world, from particles that exist in two places at once to the technology powering your smartphone.
- 1
The Quantum Surprise
- The World is Not What It Seems
- Light's Secret Identity
- 2
The Rules of the Small
- Superposition: Being in Two States
- Entanglement: The Spooky Connection
- Probability vs. Certainty
- 3
The Building Blocks
- Quanta: Nature's Minimum Order
- The Uncertainty Principle
- Wave-Particle Duality in Matter
- 4
Observing the Unobservable
- The Measurement Problem
- Schrödinger’s Cat
- Decoherence: Why the World Stays Normal
- 5
Quantum Mechanics in Action
- How Atoms Stay Together
- Tunneling: Walking Through Walls
- Spin: The Internal Compass
- 6
Modern Technology Powered by Quanta
- Lasers and LEDs
- Transistors and the Silicon Age
- Magnetic Resonance Imaging (MRI)
- 7
The Future: Quantum Computing & Beyond
- Qubits and Quantum Logic
- Quantum Cryptography
- Teleporting Information
- 8
Deep Theory & Interpretations
- The Copenhagen Interpretation
- Many Worlds and Multiverses
- Quantum Field Theory
- The Quest for Quantum Gravity
8 sections · 24 units · 95 levels. Built to play, not to enroll.
You pick the voice
Quantum Physics: The World of the Small is taught in the The Storyteller style: every lesson is a story. 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 Quantum Physics: The World of the Small today.
Download Tomo, search Quantum Physics: The World of the Small, and play your first lesson in under a minute.