Holograms with explosive power

People who handle explosives usually have heavy-duty tasks to perform – dislodging rocks, demolishing old buildings, or triggering an avalanche. But explosives can be used for delicate tasks, too: They make it possible to emboss holograms in steel.

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<p><a href="http://www.physorg.com/news124039000.html">Holograms with explosive power</a></p> <p>People who handle explosives usually have heavy-duty tasks to perform – dislodging rocks, demolishing old buildings, or triggering an avalanche. But explosives can be used for delicate tasks, too: They make it possible to emboss holograms in steel. </p>