OAOD (step)

Application: step

What it is:

Step is an interactive physics simulator. It works like this: you
place some bodies on the scene, add some forces such as gravity or
springs, then click “Simulate” and Step shows you how your scene will
evolve according to the laws of physics. You can change every property
of bodies/forces in your experiment (even during simulation) and see
how this will change the outcome of the experiment. With Step you can
not only learn but feel how physics works !

Features:

*  Classical mechanical simulation in two dimensions
* Particles, springs with dumping, gravitational and coulomb forces
* Rigid bodies
* Collision detection (currently only discrete) and handling
* Soft (deformable) bodies simulated as user-editable
particles-springs system, sound waves
* Molecular dynamics (currently using Lennard-Jones potential):
gas and liquid, condensation and evaporation, calculation of
macroscopic quantities and their variances
* Units conversion and expression calculation: you can enter
something like “(2 days + 3 hours) * 80 km/h” and it will be accepted
as distance value (requires libqalculate)
* Errors calculation and propagation: you can enter values like
“1.3 ± 0.2” for any property and errors for all dependent properties
will be calculated using statistical formulas
* Solver error estimation: errors introduced by the solver is
calculated and added to user-entered errors
* Several different solvers: up to 8th order, explicit and
implicit, with or without adaptive timestep (most of the solvers
require GSL library)
* Controller tool to easily control properties during simulation
(even with custom keyboard shortcuts)
* Tools to visualize results: graph, meter, tracer
* Context information for all objects, integrated wikipedia browser
* Collection of example experiments, more can be downloaded with KNewStuff2

To know more about:

http://edu.kde.org/step/

To install:

sudo apt-get install step

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