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In the real world, lasers correct people's eyesight, remove tattoos and operate CD players
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Lasers are leveraged in a manufacturing context for a wide variety of purposes, from marking and engraving to welding and laser cutting. The aerospace, automotive and shipbuilding industries, for example, regularly use lasers for an extensive range of applications, such as for fabrication and laser etching on metal. While these services were available well before laser technology was widely available, lasers provide a much more cost-efficient and sustainable solution.