Wolfram Research's staff organizes and edits the Demonstrations, which may be created by any user of Mathematica, then freely published[1] and freely downloaded.
Technology
The Demonstrations run in Mathematica 6 or above and in Wolfram CDF Player, which is a free modified version of Wolfram Mathematica[2] and available for Windows, Linux, and macOS[3] and can operate as a web browser plugin. Demonstrations can also be embedded into a website.[4] Each Demonstration page includes a snippet of JavaScript code in the Share section of the sidebar.
The Demonstrations typically consist of a direct user interface to a graphic or visualization that dynamically responds to user actions. Each Demonstration also has a description of the concept. The website is organized by topic, for example: science,[5] art, and biology.
