But what about a laser engraver without the laser? Can that be of any use? Apparently, the answer is yes, if you can harness the power of the sun. That’s what [Lucas] did with his solar-tracking ...
The undated image shows the U.S. Navy testing a weapon system known as HELIOS from the USS Preble destroyer in the middle of the ocean.
In such a facility, high-powered emitters in the four protruding structures fire lasers directly at a central chamber to heat ...
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