Marshall Perrinさんのイラストまとめ
@marshallperrinFollow @marshallperrinさんをフォローする
Astronomer at STScI. Exoplanets, mirrors, systems, software. Specialist in synthetic starlight. Deputy Telescope Scientist for JWST; tweets my own. (He/him)
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JWST’s segments move on purely mechanical gear trains, brilliantly developed by @BallAerospace. Nanometer precision achieved in stepper motors, reduction gears, screws, flexures. Coarse and fine stages both driven with only 1 motor via a transmission, to save mass of course.
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