1)   Looking Glass 1.0b2
Looking Glass is an interactive physics package that helps students visualize and understand the effects of optical components on light rays. While creating and exploring their own lenses and mirrors, students encounter the core concepts in optics.
concave, convex, image, lens, light, mirror, optics, ray, reflection, refraction,

 2)   free 3D Manta Ray Aqua 2.6
A Must see screensaver of photorealistic Manta Rays swimming across the screen. This screensaver will help you relax after a boring day. The graceful Manta Rays swimming through the blue depths and the amazing play of light on their skin.
Dolphin, screensaver, aqua, nature, underwater, scene, Manta, Ray,

 3)   free 3D Aqua Screensaver 2.7
A very beautiful underwater scene which helps to relax. The scene includes many different species of fish. It also includes natural rocks and plants, and an amazing play of light on their skin .
Dolphin, screensaver, aqua, nature, underwater, scene, Manta, Ray, fish,

 4)   AlphaStar 1.0
AlphaStar is a new bundle of special effects for Adobe After Effects and other compatible editing programs. It allows the creation of special effects such as highlights, stars, flashes, blinks, lens flares, rainbows, rays and animates ones.
software, video, visual effects, plugin software, plugin filter, plugin, adobe, photoshop, after effects, design,