The objective in a refracting telescope refracts or bends light. The prism refracts light into its different colors (wavelengths). When light leaves one material and enters another it bends, or refracts. The sunlight refracts on the ice crystals, making a brilliant display. The varying composition of the melon creates a sound velocity gradient that refracts sound directionally. It refracts light and protects the contents of the eye. This gradient refracts sound and focuses it like a lens. Each type of glass refracts light in a different way. A plug of green glass set into the howdah platform refracts light into Lucy's interior. The popular theory is that since water refracts light, it would confuse flies' compound eyes. For Bakhtin/Voloshinov, signs are a reality that refracts another reality, that is, signs are ideological. Refracts light poorly and is normally fire polished.