Katka Model

RISE is a software suite for model driven information system development. Use a single source RISE model to generate your entire information solution including database, web services and... more

An Airfoil plotting program for model aircraft
Tracfoil features include where it can draw shetting thickness, Leading Edge (V-notch square stock), Trailing Edge.Build 12 spars rectangular or... more

The ADMB (Automatic Differentiation Model Builder) software suite is an environment for non-linear statistical modeling enabling rapid model development, numerical stability, fast and efficient... more

The ADMB (Automatic Differentiation Model Builder) software suite is an environment for non-linear statistical modeling enabling rapid model development, numerical stability, fast and efficient... more

Equinox Precession Model is a convenient, Java based software designed to illustrate the Copernican theory of Earth's orbit around the sun.EJS Equinox Precession model illustrates the Copernican... more

Sliding Down an Incline Plane Model analyze static friction. This interactive simulation shows a stone block lying at rest on an inclined plane. Initially, the component of gravity along the plane... more

Wave Machine Model is a wave machine simulation. Wave Machine model simulates the wave machine produced by John Shive at Bell Laboratories and made famous by the PSSC Simple Waves film. The machine... more

Classical Helium Model is a three-body problem simulation to help you with your studies. Classical Helium Model is an example of a three-body problem that is similar to the gravitational three-body... more

Two Springs and a Pendulum Model is a motion simulation to help you with your studies. It compares the motion of one block that oscillates on a horizontal spring to a second block on another spring... more

3D Model Viewer is dedicated to all 3D Artists who would like to load their models without inserting them in the game and loading the game engine to render. It offers many useful features (ex.... more

Orbiting and Colliding Galaxies 3D Model is a three-dimensional extension of the supercomputer model of colliding galaxies. The Orbiting and Colliding Galaxies 3-D Model is an extension of the... more

EJS Spiral Nebula Rotation Model is a approach to spiral nebulae. This simulation illustrates Adrian van Maanen's method for measuring the rotations (or internal motions) of spiral nebulae. Van... more

Illustrates the distribution of globular clusters from the Harlow Shapley model. This simulation shows the distribution of globular clusters around the plane of the Milky Way as determined by... more

The Slash-Dot Model simulates a massive line segment and massive point rotating about one another due to gravity in a 2-dimensional plane. The simulation tracks the obits of the line segment (or... more

This project will produce a formal, open source System Dynamics information model specification document to rigorously define the set of model objects, their relationships, their attributes, and... more