2011 Nautical Almanac 2011

Combine multiple sights on different tracks. Data available for 9999BC to 9999AD including a Star Atlas, twilights and eclipses. It will print conventional Nautical Almanac pages while the voyage plan is a sophisticated tool in its own right.

Patent Bar Simulator - USPTO Registration Examination Practice Simulation Software. Nine Complete Actual Exams with Explanations updated to reflect the changes to the law and the rules brought about by the American Inventor's Protection Act of 1999.

Aciqra is a free and open source virtual planetarium and sky mapping program which tracks celestial bodies including planets, deep sky objects and stars.