X-Plane is a flight simulator that reads in the geometric shape of any aircraft and then figures out how that aircraft will fly. It does this via an engineering process called "blade element theory", which involves breaking the aircraft down into many small elements and then finding the forces on each little element many times per second. These forces are then converted into accelerations, which are then integrated to velocities and positions. This gives X-Plane the most realistic flight model available for personal computers.
Fresh Memory is an application that helps you to learn large amounts of any material with Spaced Repetition method. The most important subject is learning foreign words, but Fresh Memory can also e used to learn anything else. Other examples are country's capitals and flags, chemical elements, mathematical formulas, and technical terms. The learning data is stored as flash cards and dictionaries: sets of cards. The flash cards may have several fields, and the user controls what combination of fields to learn. The flash cards can have formatted text and images. The look of flash cards and studying parameters are can be flexibly adjusted.
Seismic Toolkit is a tool for processing and displaying seismic signal data in a graphical interface. It reads seismic signals in SAC format, and provides a variety of signal processing, such as filtering, spectral analysis, polarisation analysis, time-frequency representation, Hilbert transform, and singular value decomposition. Some utilities are included for useful seismological applications, like computation of Seismic Moment Mo, Mantle magnitude Mm and Moment magnitude Mw, MTPA spectral analysis, plotting focal mechanisms, computation (and plotting) of instrumental response from poles and zeros, and some usefull GMT (Generic Mapping Tool) scripts for plotting signals, responses, and time-frequency in Postscript files for high quality prints.
granule is a multi-platform (Linux, Windows, NetBSD, Nokia770 Internet Tablet, OpenEmbedded GPE PDAs) flashcards program that implements Leitner space repetition methodology for expanding your vocabulary. It features both short-term and long-term memory training capabilities to improve memory retention.
Linguistic Tree Constructor is an application for drawing linguistic syntax trees. Its main strength is assisting in data production by quickly analyzing large amounts of text. "Generic" trees are supported, as well as RRG and X-Bar trees. Node-categories are user-definable, and additional user-definable labels can also be applied to each node. Publication-quality, high-resolution, horizontal trees can be drawn. The file format is based on TIGER-XML.
Emilda is an Integrated Library System that features an OPAC, circulation and administration functions, Z39.50 capabilities, and 100% MARC compatibility. MARC compatibility is achieved using the Zebra server from Indexdata in conjunction with MySQL. Emilda is mainly written in PHP, but Perl scripts exist for MARC manipulation and shell interaction.