Orbital Velocity Of Neptune

The Ejs Doppler Effect model displays the detection of sound waves from a moving source and the change in frequency of the detected wave via the Doppler effect. In addition to the wave fronts from the source a graph depicting the time of emission and time of detection of each of the wave fronts...

The Car Race model is a Java-based simulation that will help students visualize the difference between constant velocity and constant acceleration. It features the classic physics scenario in kinematics: a lead car travels at constant velocity on a straight track, while a second car moves from...

The Ejs Spinning Hoop model displays the model of a bead moving along a hoop which is spinning about its vertical diameter with constant angular velocity ?. Friction is negligible. The simulation displays the motion of the bead as well as a plot of angle vs. time for the bead. The angular...


Platforms: Mac

The Stellar Aberration 3D Model illustrates the phenomenon known as the aberration of starlight, first reported by James Bradley in 1729. Aberration occurs because light has a finite speed, and thus light from a star takes a finite amount of time to travel through the tube of a telescope. During...


Platforms: Mac

A set of modernized 3D pong style games combining the best features of squash and tennis. The game space is a cubic room. The back wall is defended by your opponent (the computer) and the front wall (behind you) is defended by you. The aim of the game is to make the ball hit the back wall of the...


Platforms: Windows

Far far away, at the very edge of the Solar System lies Pluto, the ninth planet from the Sun. It is not only much smaller and less massive than every other planet, it is also smaller and less massive than seven moons of other planets. It has a highly eccentric orbit which takes it inside the...


Platforms: Windows

Cannons and Castles is a Macintosh port of an Apple II game called Cannons and Castles. It's a two-player game; each player gets a castle on either side of a hill and must try to blow up the other player by typing in the angle and velocity of their shot. (Note: the server for this game may be a...


Platforms: Mac

Cell Motility Analysis Package analyzes timelapse sequences of moving cells. Various quantitites characterizing motility are calculated, including normal velocity of the membrane, cell contact area, and spatio-temporal auto-correlation functions.


Platforms: Windows, Mac, BSD, Linux

The purpose of this tutorial is to illustrate the usage of Kalman Filter by a simple example.The problem: Predict the position and velocity of a moving train 2 seconds ahead, having noisy measurements of its positions along the previous 10 seconds (10 samples a second).Ground truth: The train is...


Platforms: Matlab

The demo uses one possible implementation of hooking up a SimEvents model with 3D animation using Simulink 3D Animation.A simple model of an entity generation is created in SimEvents. This entity generation is sampled in time to establish synchronism between the 3D objects created dynamically...


Platforms: Matlab

The Ejs N-body Orbits model displays the dynamics of three to five identical masses orbiting each other subject to Newtonian gravity. The simulation displays the periodic orbital motion of the masses. The initial configuration of the system can be changed via slider. You can modify this...


Platforms: Mac

The Ejs Coin Rolling without Sliding on an Accelerated Platform model displays the dynamics of a coin rolling without slipping on an accelerated platform. The simulation displays the motion of the coin as well as the velocity vectors for the surface of the coin and the platform. The initial...


Platforms: Mac

The Ejs Pendulum on an Accelerating Train model displays the model of a pendulum on an accelerating train. The problem assumes that the pendulum rod is rigid and massless and of length, L = 2, and the pendulum bob is of mass, m = 1. The initial pendulum angle and the initial velocity of the train...


Platforms: Mac

The EJS Falling Loop Model shows a conducting loop falling out of a region of uniform magnetic field. It plots the velocity of the loop as a function of time. Users can change the size and orientation of the loop as well as the extent and location of the uniform field. If Ejs is installed,...


Platforms: Mac

The GR Kerr Exploding program simulates orbits of objects released in an explosion in the equatorial plane of a rotating black hole using the Kerr metric. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the gr_kerr_exploding.jar file will run the program if Java is...


Platforms: Mac

Nereid is a free and open source, turn based strategic card game written in Java. Nereid is the monster moon of Neptune.


Platforms: Mac

A comprehensive astronomy / space / satellite-tracking package. It allows you to view: An earth map, showing day and night regions, location of the Moon and current phase, and position of a selected earth satellite. Panel showing positions of planets and a selected asteroid or comet, both...


Platforms: Windows

EQAlign born as a software that assists to align a German Equatorial Mount (GEM) exactly to the Earth polar axis. The used method is that of Julius Scheiner (1858-1913) german mathematic, physic, astronomer and pioneer in astrophotography. Today, in adition to polar align feature, EQAlign is...


Platforms: Windows

Halley is a handy application that allows you to access and get various informations about comets. Works with the comets database, containing Keplerian orbital elements, non-gravitational and physical parameters of the comet, and other data. The database is updated in case the new data become...


Platforms: Windows, Windows Vista, 7

Slowly comes alive with a moving train, dancing teddy bear, marching toy soldiers, a countdown to Christmas day, functional clock and calendar, a dancing snowman frolics in the falling snow outside and more! Contains realistically modeled 3D animated images and MP3 music file (Let it Snow)....


Platforms: Mac