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The beam is highly focused and collimated—in most non-reflective materials like wood, plastics and enamel surfaces, the conversion of light energy to heat is more than {x%} [vague] efficient. [4] However, because of this efficiency, the equipment used in laser engraving may heat up rather quickly. Elaborate cooling systems are required for ...
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Failure is not an option is the tag line of the 1995 film Apollo 13.It is spoken in the film by Ed Harris, who portrayed Gene Kranz, and said [2] [3]. We've never lost an American in space; we're sure as hell not going to lose one on my watch!