Discover
Wander the web like a shoreline.
Something new washes up every time: pages from all kinds of people, made with all kinds of tools. Beachcomb shows you what it found, then gets out of the way.
Pick a few topicsRonnie's Casino and the Nature of Reality
an interactive exploration of bell's theorem
From Explorable Explanations

What Is A Day?
a simulation-with-narration about what, really, is a "day"?
From Explorable Explanations


Relativity Visualized
Buy Relativity Visualized: The Gold Nugget of Relativity Books on Amazon.com ✓ FREE SHIPPING on qualified orders
From Awesome Explorables


Entropy Explained, With Sheep
an interactive guide to what exactly *is* entropy
From Explorable Explanations

Math and Physics Applets
Various interactive educational applets. By Paul Falstad.
Something different

Inner Workings of a Mechanical Watch
Interactive article explaining how a mechanical watch works.
Something different
Notes on Waveguide Synthesis
an exploration of physical modeling synthesizers
From Explorable Explanations
Electronics Circuit Simulator
Electronics circuit simulator also available in an offline version.
From Awesome Explorables

6 Useful Snippets
“with this tutorial, you can bang together a physics engine in 75 lines of code”
From Explorable Explanations

Collision Detection in Games
an olden-days explorable from 2011 (requires Flash)
From Explorable Explanations

Quantum Computing for the Very Curious
an introduction with embedded Spaced Repetition
From Explorable Explanations

That's this stretch.
Walk on