In their report, the researchers argue that by humanely shaving the horns of live rhinos, enough material could be generated to meet global demand.

BBC: Rhino horn - time to legalise the trade say researchers

Rather, replacement components would be generated as needed from feedstock material.

MSN: Future astronauts may rely on made-in-space parts

Some of those illusions include "focus, " which displays special effects around the images, "segmented focus, " to extend the display to portions of the living space (requiring extra material to be generated), and "appearance, " changing the look of your room by giving it a cartoon appearance, for instance.

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