Great websites
Corners of the internet I keep going back to.
The Sky Live — 3D Solar System ↗ A live, interactive model of the solar system. SignBSL ↗ A video dictionary of British Sign Language. Perseus Digital Library ↗ The classics, in the original — a vast library of ancient texts. VisualPDE ↗ Solve partial differential equations in your browser, and watch patterns grow. Spacetime Globe ↗ Drag special relativity around — a hands-on spacetime diagram. BAO / CMB ↗ The echoes of the early universe — baryon acoustic oscillations, visualised.