Physion is a 2D Physics simulation software. It can be used to easily create a wide range of interactive physics simulations and educational experiments. Teachers may find it particularly useful since it can be used as a virtual physics laboratory through which they can demonstrate some basic physics concepts in the classroom. Physion has been translated into the following languages: English, Greek, Russian, Japanese, German, Spanish and Indonesian. The software is available both for Windows (XP, Vista, 7) and Linux (x86 and x86_64) operating systems and most importantly it is 100% free.