Wholesale Beads
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The best bead wholesaler on the internet.Wholesale Beads - Facts:
Wholesale Beads featuring superior Glass Beads.  We offer wholesale prices for
those Wholesale Beads owners. Photochromic glass darkens when exposed to light but fades to its original clear state when the light is removed. This behavior is achieved by the action of light on extremely small silver chloride or silver bromide crystals distributed throughout the glass. Photochromic glass finds a natural use in spectacle lenses that darken into sunglasses when in the sun and lighten again when removed from sunlight. The field of electronics also finds uses for this kind of glass. Glass containing certain metals will form a localized crystallization when exposed to ultraviolet radiation. If heated to high temperatures, the glass will convert to crystalline ceramics with mechanical strength and electrical insulating properties greater than that of ordinary glass. Such ceramics are now made for such uses as cookware, rocket nosecones, and space-shuttle tiles. Woven into textile fabrics, glass fibers make excellent drapery and upholstery materials because of their chemical stability, strength, and resistance to fire and water. Glass fabrics alone, or in combination with resins, make excellent electrical insulation. By impregnating glass fibers with plastics, a composite fiberglass is formed that combines the strength and inertness of glass with the impact resistance of the plastic. High-refractive-index glass fibers, laid parallel to one another and separated by thin layers of low-refractive-index glass, can be optically worked as a lens. Fiberscopes incorporating such bundles can transmit an image through acute angles, thus easing the examination of normally inaccessible sites.
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See also: Beads and Jewelry Supply and Beads and Jewelry Supply.
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