Ten ideas that break classical intuition.
A hands-on walk through quantum mechanics — from a single particle in superposition to the edge of what physics currently knows. Ten topics, each with its own interactive demo and the real physics underneath it, checked against the primary literature rather than restated from memory.
I have a background in computer science, and a self-taught, fairly deep interest in physics and cosmology that's grown over years of reading well outside my formal training. Quantum mechanics specifically was the one corner I hadn't spent real time in — the math is unfamiliar, the intuition is famously hard to build, and most explanations either stay too abstract to feel real or lean on analogies that quietly mislead.
Quantum Playground is what came out of trying to close that gap for myself, and then trying to hand the result to someone else. Each of the ten topics started as a question I wanted a real, hands-on answer to — not a paragraph to read, but something to press and watch respond. Along the way it became less about explaining quantum mechanics to a general audience and more about building the actual habit that requires: translate a real result accurately, keep the parts that are still genuinely open honestly open, and make all of it something a stranger can walk up to and understand in thirty seconds.
That translation work — between "this is what the equations say" and "here's what that means, and here's how to feel it" — is the actual point of this project, more than any single topic on it.
What's here
Five destinations, depending on what you're looking for.
Quantum Playground
The interactive build itself. Ten topics, each with its own hands-on demo and the physics underneath it — from a single particle in superposition to the unsolved clash between relativity and quantum mechanics.
Enter the playground → §For Scientists
Three hands-on labs: build your own circuit, run five famous quantum protocols, or explore any of the ten topics' equations live with sliders — all real computation, no canned animations.
Build an experiment → ≡Resources
The method, stated plainly, a technical appendix deriving the equations behind each topic, and every primary source this site's physics is checked against.
Read the method → ★Pop Culture
Twenty places quantum mechanics shows up (or gets mangled) in film and TV, plus a smaller, honestly-sized set of quantum-adjacent music.
Browse the list → @Contact
Found something inaccurate, want to talk about a collaboration, or just want to say hello.
Get in touch →Ten topics, three acts
The interactive build moves from the microscopic to the cosmic in three groups.
The Core Four
Four ideas that break classical intuition, and the foundation everything after them is built on.
Superposition · Measurement · Duality · Entanglement Group IIThe Weirdness Layer
What makes quantum mechanics genuinely strange, and where computer-science instincts start to help.
Uncertainty · Tunneling · Qubits · Cryptography Group IIIThe Big Questions
Where quantum mechanics meets the largest scales in the universe, and where physics runs out of answers.
Quantum Vacuum · Quantum GravityBuilt to a scientific standard, not a pop-science one.
Every claim on this site was checked against the primary literature, and every place the popular picture oversimplifies — Hawking radiation's "virtual particle pairs," "quantum foam" presented as settled physics — is called out explicitly rather than smoothed over. The full list of sources, and a note on method, is on the Resources page.