This program offers a unique redesign of the standard Periodic Table of Elements. Periodic Spiral illustrates the interrelationship of natural and artificial elements. It features a complete set of 120 elements. It also a wealth of information on each element. While it deviates from most science standards, it offers students a chance to truly grasp the unique properties of each element.

"McHurricane is a hurricane/storm tracking utility, covering the Atlantic Basin and Eastern Pacific including Hawaii, (13 degrees West to 174 degrees West Longitude, and 0 degrees to 48 degrees North Latitude). You can download storm advisories from the National Hurricane Center directly into McHurricane. Nine storms of 100 plots each may be open at one time. Storm plots can be added, deleted, or inserted. Track plot list is shown, and a selected plot's data may be individually displayed including distances to four custom user installed city locations. Maps and storm data may be printed, and map areas copied to the Clipboard. Preferences may be set for the default map, plot symbols, and storm-strength wind circles, 12 or 24 hour clock display and time zone identification, distances/speeds in nautical, statute, kilometer format, atmospheric pressure in inches of mercury or millibars, storm logs and tracks displayed in selectable matching colors, entry of four custom city locations, and various other launch and screen layout options."

Learn and investigate the concepts of associative memory in a two-layer parallel distributed processing architecture using an interactive neural network simulator that provides direct access to units, connections, and patterns. A comprehensive user's manual includes cell biology, simulated neurons and networks, learning, and memory is an added feature; all for FREE!.

Discover a textual description of the moon's phase, the percentage of illumination, the moon's age in days, and the current lunation number. This is an application that can compute the lunar data for any given date. Registration for MoonMenu costs $12 after a few uses.

This is a simulation of what the sky looks like from any location in the solar system. The program is easy to use, fast, and fluid, quickly rendering photo-realistic scenes of the night sky.