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DYI Monochromator using a flashlight and CD
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:57, 8 November 2018 | | 3,840 × 2,160 (2.21 MB) | Ajrettig (talk | contribs) | DYI Monochromator using a flashlight and CD |
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