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Two thin similar watch glass pieces are joined together, front to front, with rear portion silvered and the combination of glass pieces is placed at a distance a = 60 cm from a screen.
09
Oct
Two thin similar watch glass pieces are joined together, front to front, with rear portion silvered and the combination of glass pieces is placed at a distance a = 60 cm from a screen. front to front Two thin similar watch glass pieces are joined together with rear portion silvered and the combination of glass [...]
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Tags: front to front , Two thin similar watch glass pieces are joined together , with rear portion silvered and the combination of glass pieces is placed at a distance a = 60 cm from a screen. ,