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Record your PC screen activities to create interactive demonstrations

A powerful and intuitive software program students use to organize data

It's a software that can make high quality crossword puzzles

A nice training software for assisting coaches in their sport

Focus on Physics: Waves is a collection of simulated science experiments

Windows presentation program, allowing segmented text, serial port control, and sound playing

Windows

Windows Mac

Korean Space Weather Center

RRA Space Weather

What is the Solar flare? What's going on aruond the Sun and the Earth?