Zubtitle - Zubtitle is an online tool that makes it easy to add captions to any video.
Bullet - Share captioned video snippets of podcasts from any app
Subly - Free automated tool to add captions on video.
Box2D - A 2D Physics Engine for Games
Veme.ly - Create social videos with subtitles
Matali Physics - Matali Physics is an advanced, multi-platform, high-performance 3d physics engine intended for games, virtual reality and physics-based simulations.