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Educational orbit and gravitation simulator for high school, college and beginning university physics and astronomy. Easily create, run, print and save a simulation. Includes 29 introductory to advanced premade simulations with activities page in html-format. Uses actual pictures of planets. Plot orbits in a plane or in 3D. View time, distances, speeds, accelerations and energies as they change. Zoom and change parameters during the simulation.

Download Orbit Xplorer 2.0

Alice Law
Learn Special Relativity and General Relativity with this program. Full edition. Excellent animated. Includes advance interactive features. You will enjoy it.

Osama Bin Laden - al Qaeda Government Files
Osama Bin Laden - al Qaeda Government Files. Pages from State Department, Congressional, Department of Justice documents and Court Transcripts.

GSA Image Analyser
The GSA Image Analyser is a program to analyse 2D Images of any kind. It can recognize and count objects in an image or also calculate the distance areas in it. The images can be imported from many sources (file, scanner, microscope, cam).

xyExtract Graph Digitizer
The "xyExtract" software is used for to extract data from a 2D graph (orthogonal and nonorthogonal axes) contained in a graphic file (scanned, PDF document or in a some file like gif, jpg, etc). The graphic file must be saved in a bitmap file.

Sharky Neural Network
Neural network classification results live view (like a movie). Free software for playing with neural networks classification. Many network architectures, different shapes of training data sets. Learning with backpropagation algorithm.