File:Voyage in Space page101a.png
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:15, 20 December 2015 | 1,603 × 1,233 (64 KB) | Keith Edkins | {{Information |Description={{en|1=Refraction by a prism. The line DX is present only for the lecturer to observe that this is NOT the effect of diffraction at the second surface.}} |Source=A Voyage in Space[https://archive.org/details/voyageinspacecou... |
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