Phun Algodoo Now

(formerly known as ) is a free 2D physics sandbox software used by students, educators, and hobbyists to create and explore interactive physical systems. It was originally created by Emil Ernerfeldt as a master's project and is now developed by Algoryx Simulation AB Key Features of Algodoo Intuitive Drawing & Tools

The Chain Reaction

: When Leo hit the "Play" button, gravity took over. The boulder crushed the glass, which fell onto a see-saw, launching a tiny marble into a series of rotating gears. phun algodoo

Phun/Algodoo provides a "constructionist" learning environment where you can build anything from simple falling blocks to complex mechanical engines. (formerly known as ) is a free 2D

significantly increases student motivation in physics classes. Intuitive Controls It is not a finite element analysis (you

Hard Sphere

The engine uses a discrete element method. It is not a finite element analysis (you cannot cut a box in half during simulation), but for rigid body dynamics, it is incredibly accurate. You can adjust:

Objects aren't just pictures; they have physical properties. Select an object and choose a material from the bottom bar: