This is a MEMs diffraction grating that is being stretched by a human operator. The grating is tiny, each blade is 1/5 the width of a human hair! As the grating is stretched, it bends out of plane ( turns black) and then breaks.
This device is designed for spectrographs in the next generation of extreemly large astronomical telescopes. For more info go here: http://www.ucolick.org/~npk/dokuwiki/doku.php?id=mems:start
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