Page 13 - NyghtVision Volume 5 #4
P. 13

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                                                                   Left: Yaquina Head Light,
                                                                   Newport, OR











































 Fresnel









 Article by
 Andy Walcott
 Beam – a stream of particles flowing in one direction
 Photos by
 Andy Walcott
 awalcott@nyghtfalcon.com












                                                                                          Autumn 2015 | 13
 12 | Andy Walcott
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