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 cannot be divided into infinitely smaller pieces
- Energy is transferred in specific, countable amounts
- The fundamental difference between classical continuity and quantum discreteness
- Physical properties change in distinct jumps rather than a smooth flow
- The term for a single packet of energy
- The definition of the fundamental unit of energy
- There is a 'minimum' size for energy interactions
- Large-scale objects follow predictable paths that don't apply to the quantum scale
- Atoms are over 99% empty space
- The 'solid' feel of matter is caused by forces, not by being packed with stuff
- Matter is composed of points of energy in constant motion
- Recognition that everyday physics intuition fails at the subatomic scale
- The sensation of 'solidity' is the result of energy fields repelling each other
- The surprising physical composition of an atom
- Particles are better described as vibrations than as static 'dots'
- The true nature of seemingly solid matter
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.
Imagine you are watching energy move from an atom to a sensor. How is that energy actually delivered?
Get it right to open this lesson and 90 more in the app.
Where The Quantum World takes you
Explore the strange and beautiful reality of the subatomic world where particles exist in two places at once and objects can walk through walls.
- 1
First Contact with the Tiny
- The End of Smoothness
- The Wave-Particle Duality
- 2
Breaking the Laws of Physics
- The Uncertainty Principle
- Superposition and the Cat
- Quantum Tunneling
- 3
The Social Life of Particles
- Quantum Entanglement
- Identical Particles
- The Pauli Exclusion Principle
- 4
How the World Stays Solid
- Atomic Energy Ladders
- The Spin of the Small
- The Geometry of Atoms
- 5
Quantum Technology in Your Pocket
- Lasers and LEDs
- Semiconductors and Chips
- Atomic Clocks and GPS
- 6
Extreme Quantum States
- Superconductivity
- Superfluidity
- Bose-Einstein Condensates
- 7
The Information Revolution
- Qubits and Quantum Logic
- Quantum Computing Power
- Quantum Cryptography
- 8
Making Sense of the Nonsense
- The Copenhagen Interpretation
- Many Worlds and Other Ideas
- The Future of Quantum
8 sections · 23 units · 91 levels. Built to play, not to enroll.
You pick the voice
The Quantum World 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.
More Science on Tomo
The Mechanics of the Cosmos
Master the mathematical laws and physical principles that govern everything from the motion of planets to the quantum behavior of starlight.
Bones, Muscles, and Movement
Go beyond naming parts to understand how the human frame generates power, maintains stability, and adapts to the physical world.
The Physics of the Void
Understand the invisible rules that govern the cosmos, from why satellites don't fall to how gravity bends the very fabric of time.
Human Anatomy and Physiology
Go beyond basic diagrams to master the complex mechanical and chemical interactions that sustain human life. This course bridges the gap between structural form and clinical function for a professional-grade understanding of the body.
Atmospheric Physics: The Secret Life of Clouds
Move beyond basic classification into the complex thermodynamics and microphysics that drive cloud formation and global climate regulation.
Stargazing and the Hidden Universe
Learn to read the night sky like a map and discover the secret messages hidden in starlight. From finding famous constellations to 'seeing' invisible radiation, you'll view the cosmos in a whole new light.
Start The Quantum World today.
Download Tomo, search The Quantum World, and play your first lesson in under a minute.