12 Different Signs of the Zodiac 3D Laser- Etched Crystal Key Chains. Direct from Russia. Perfect gifts! Each of the key-chain is individually packed and can be presented separately. The process for creating this work of art was stumbled upon by accident; scientists performing experiments with lasers found that when the beam was focused incorrectly, a small "bubble" would appear in their optical glass. Enterprising experimenters saw an opportunity to take advantage of this effect, and they were soon using lasers to create three-dimensional images in crystal. The production of this piece is accomplished through the use of computer-controlled motors that move the blocks a slight amount with each laser pulse, allowing the laser to draw the stunning designs. The key-chains were made in Russia-the birthplace of a new form of art: laser-etched crystal.
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