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Free

Develop applications using the Jakarta extension of the Java EE platform.

Free

high precision & powerful desktop calculator

Free

Draw electrical and electronic diagrams, schematics, and control circuits.

Here we have the best Math program, a language for technical computing.

Free

Simulate and run complete analysis of hydraulic systems.

Free

Cropwat calculates the amount of water needed for the irrigation of crop fields.

Free

Collection of physics simulations from University of Colorado.

Free

Designed to help users create virtual electromechanical systems

Free

Is a package for designing single-sided and double-sided printed circuit boards

Free

With this SDK, developers can embed World Wind tech in their own applications.

Free

Free cross-platform English thesaurus that works completely off-line.

Free

Mathematica opens projects, and lets you interact with Wolfram Demonstrations Project library docs.

It is a program that helps you discover and preserve your family’s heritage.

Free

It can be your first, last, and only line of offense against mathematics.

Free

Reference on physical constants...

Free

PAF is a genealogy program useful to help you store family history records.

A screensaver/program that displays the planet Earth revolving around the Sun.

Data analysis and visualization program.

Design and analyze complex pipe networks using your computer.

Free

It allows you to measure the response time on optical fiber networks.

Powerful remote sensing and image analysis program.

Brain Wave Generator is actually a brain simulator to enhance your brain power.

Free

River Analysis System (RAS) to perform water flow analysis and computations.

Free

Filter, edit, tabulate, and disseminate census and survey data.