: Create lasers, lenses, and prisms to study refraction, reflection, and rainbows.
Whether you remember the original Phun's playful experiments or are discovering Algodoo for the first time, one thing is certain: the physics fun is just beginning.
Algodoo (formerly Phun) is an approachable, hands-on 2D physics sandbox that makes learning and exploring mechanics fun and visual. With a simple drawing system you can create gears, ramps, fluids, and contraptions, then watch them come alive under realistic physical laws. Assign materials like rubber, wood, or steel with adjustable density, friction, and bounciness. Connect parts using hinges, sliders, and springs, add motors to inject motion, and use sensors and scripting to create logic and interactive behavior. Algodoo runs simulations in real time with controls for slow motion and step-by-step playback so students can observe cause and effect. Export scenes and recordings for presentations or sharing. Designed for educators and hobbyists, Algodoo supports inquiry-based learning in physics and engineering: students form hypotheses, build models, test, and iterate. Its playful interface removes barriers to experimentation while underlying physics remain faithful, providing an engaging bridge from intuition to formal concepts like Newton’s laws, conservation of energy, torque, and fluid dynamics. Whether you’re teaching a classroom lesson on collisions or prototyping a Rube Goldberg machine, Algodoo turns abstract mechanics into something you can touch, tweak, and test. phun algodoo
The real longevity of phun algodoo comes from the Algodoo Fun online forum (originally the Phun Forum on Phunland). Users upload ".phn" or ".alg" files containing:
For over a decade, the landscape of interactive education has been quietly shaped by a remarkable piece of software: a two-dimensional physics sandbox that turned abstract Newtonian laws into a playful, vibrant canvas. Born from a Swedish master's thesis and bursting into global fame via a viral YouTube video, the journey from to its professional successor Algodoo is a fascinating story about the power of “learning while playing” . : Create lasers, lenses, and prisms to study
In 2009, Emil Ernerfeldt brought the technology to Algoryx Simulation AB , a company specializing in high-performance simulation. This partnership led to the rebranding of Phun into .
Particles that behave like liquids, featuring buoyancy and viscosity. With a simple drawing system you can create
By 2008, Phun had gone viral. Educational blogs called it "the next big thing since Logo." Teachers used it to explain Newtonian mechanics. Gamers used it to build Rube Goldberg machines. The software was free, lightweight, and ran on almost any computer.
This article dives deep into the history, features, and enduring appeal of the software known collectively as .
Attach rocket thrusters to objects with customizable force vectors to build functional aircraft or spaceships. Material Properties