You could have downloaded YP Refraction 1.0 for Mac from our application library for free. The application belongs to Education Tools.
From the developer:
YP Refraction is a tool to learn all about the refraction of light (Snell's law) in geometrical optics. The program provides a laser source that can be moved around a prism. Six different prisms are available: a simple frontier between two media of different index of refraction, a semicircular prism, square prism, a rectangular prism, two triangular prisms. The user can change the indices of refraction.
You may want to check out more Mac applications, such as Desktop Aquarium 3D LIVE Wallpaper & ScreenSaver, Koi Pond 3D or Sky Gamblers - Storm Raiders, which might be related to YP Refraction.
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