[et_pb_section fb_built=”1″ custom_padding_last_edited=”on|desktop” next_background_color=”#ffffff” admin_label=”About” _builder_version=”4.16″ _module_preset=”default” background_color=”gcid-d705e4a5-73d4-4d11-8c7b-a5d471a82263″ background_color_gradient_start=”#f7a355″ background_image=”https:\/\/universetspuls.dk\/wp-content\/uploads\/2022\/03\/nasa-hI5dX2ObAs-unsplash.jpg” background_size=”initial” custom_margin=”0px||||false|false” custom_padding=”60px||||false|false” custom_padding_tablet=”60px||||false|false” custom_padding_phone=”60px||||false|false” bottom_divider_style=”ramp2″ bottom_divider_flip=”horizontal” background_last_edited=”on|desktop” background_enable_mask_style_tablet=”off” background_enable_mask_style_phone=”off” background_mask_transform_tablet=”invert|flip_horizontal” background_mask_transform_phone=”invert|flip_horizontal” background_mask_size_tablet=”contain” background_mask_size_phone=”contain” background_mask_width_phone=”100%” background_mask_height_phone=”20%” background_mask_position_tablet=”top_left” global_colors_info=”{%22gcid-d705e4a5-73d4-4d11-8c7b-a5d471a82263%22:%91%22background_color%22%93}” theme_builder_area=”post_content”][et_pb_row custom_padding_last_edited=”on|phone” _builder_version=”4.16″ _module_preset=”default” background_enable_color=”off” z_index=”10″ max_width=”1280px” custom_padding=”100px|60px|80px|60px|false|true” custom_padding_tablet=”60px|30px|60px|30px|true|true” custom_padding_phone=”|0px||0px|false|true” locked=”off” global_colors_info=”{%22gcid-d705e4a5-73d4-4d11-8c7b-a5d471a82263%22:%91%22background_mask_color%22%93}” theme_builder_area=”post_content”][et_pb_column type=”4_4″ saved_specialty_column_type=”3_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_text _builder_version=”4.16.0″ _module_preset=”default” header_font=”Philosopher|700|||||||” header_text_color=”#FFFFFF” header_font_size=”70px” header_2_font=”Philosopher|700|||||||” header_2_text_align=”center” header_2_text_color=”#FFFFFF” header_2_font_size=”60px” header_2_line_height=”1.3em” width_tablet=”80%” width_phone=”100%” width_last_edited=”off|desktop” custom_padding=”||50px||false|false” animation_style=”fade” animation_direction=”bottom” header_font_size_tablet=”70px” header_font_size_phone=”54px” header_font_size_last_edited=”on|phone” header_2_font_size_tablet=”48px” header_2_font_size_phone=”28px” header_2_font_size_last_edited=”on|desktop” header_text_shadow_style=”preset1″ header_2_text_shadow_style=”preset3″ locked=”off” global_colors_info=”{}” theme_builder_area=”post_content”]<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ _module_preset=”default” background_enable_image=”off” custom_padding=”3px|||||” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_row custom_padding_last_edited=”on|phone” _builder_version=”4.16″ _module_preset=”default” custom_margin=”0%|auto|0%|auto|true|false” custom_padding=”60px||130px||false|false” custom_padding_tablet=”40px||||false|false” custom_padding_phone=”40px||||false|false” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][et_pb_image title_text=”forsideOKII” _builder_version=”4.23.1″ _module_preset=”default” custom_margin=”-200px||||false|false” animation_style=”fade” hover_enabled=”0″ box_shadow_style=”preset1″ global_colors_info=”{}” theme_builder_area=”post_content” src=”https:\/\/universetspuls.dk\/wp-content\/uploads\/2025\/09\/forsideOKII.jpg” sticky_enabled=”0″][\/et_pb_image][et_pb_text _builder_version=”4.23.1″ _module_preset=”default” text_text_color=”#000000″ text_font_size=”18px” text_line_height=”1.8em” animation_style=”fade” animation_duration=”1050ms” hover_enabled=”0″ text_font_size_tablet=”18px” text_font_size_phone=”16px” text_font_size_last_edited=”on|phone” global_colors_info=”{}” theme_builder_area=”post_content” custom_padding=”|||1px||” sticky_enabled=”0″]<\/p>\n
I forordet st\u00e5r der:<\/p>\n
Startende i 1997 har der v\u00e6ret en fast \u201dkolonne\u201d kaldet \u201dOptiske Kuriositeter\u201d i medlemsbladet DOPS-NYT for Dansk Optisk Selskab. I alt 26 artikler omhandlende mange forskellige som regel lidt specielle eller m\u00e5ske m\u00e6rkv\u00e6rdige emner inden for det optiske omr\u00e5de blev samlet i f\u00f8rste bind af bogen: \u201dOptiske Kuriositeter\u201d, som udkom i 2004. I 2015 oph\u00f8rte den faste kolonne, og de resterende artikler siden 2004 er nu blevet samlet i n\u00e6rv\u00e6rende andet bind: \u201dOptiske Kuriositeter II\u201d.\u00a0\u00a0<\/p>\n
Titlerne er ofte formet som et lidt kuri\u00f8st sp\u00f8rgsm\u00e5l for at v\u00e6kke interessen, f.eks. \u201d Kan et stofs brydningsindeks blive negativt?\u201d eller \u201d Kan lys indfanges uden at slippe fri igen?\u201d.\u00a0<\/p>\n
Der er gjort meget ud af at g\u00f8re fremstillingen p\u00e6dagogisk, selvom udledningerne undertiden kan v\u00e6re lidt tunge.\u00a0<\/p>\n
Artiklerne er blevet grupperet efter emner, s\u00e5ledes at de er blevet samlet i otte kapitler. Hver artikel har en reference (\u00e5\u00e5,nr) til det nummer af DOPS-NYT, hvor den er blevet trykt, hvor \u00e5\u00e5 er \u00e5rstallet, og nr er udgavenummeret det p\u00e5g\u00e6ldende \u00e5r (der er fire udgaver pr. \u00e5r). Dette referencesystem g\u00f8r det lettere at finde evt. henvisninger til tidligere artikler i bind 1 af Optiske Kuriositeter.<\/p>\n
Indholdsfortegnelsen giver et indtryk af de valgte emner:<\/p>\n
I Lyshastighed
Kan et stofs brydningsindeks blive negativt?
Er lyshastigheden virkelig en naturkonstant?\u00a0\u00a0 Is the speed of light fluctuating or having a fixed value?<\/p>\n
II Lysudbredelse
Kan lys indfanges uden at slippe fri igen?
Hvilken frekvens oscillerer en exciton egentligt med?<\/p>\n
III. Refleksion
Kan spejle v\u00e6re forst\u00e6rkende?<\/p>\n
IV Lasere
Er laserlys altid koh\u00e6rent?
Can free electrons emit X-ray laser light?<\/p>\n
V. Kvanteoptik
Er impulsmomentet bevaret ved sumfrekvensgenerering af fotoner?
Hvor meget fylder en foton?<\/p>\n
VI. Det elektromagnetiske vakuum
Bev\u00e6ger Jorden sig i forhold til den kosmiske mikrob\u00f8lge baggrundsstr\u00e5ling?<\/p>\n
VII. Generel fysik
Is the Energy of the Dark Matter due to Majorana Particles?
Kan Lorentztransformationen bruges i accelererede systemer?<\/p>\n
VII. Diverse emner
Hvorfor er skyerne ikke bl\u00e5?<\/p>\n
Bogen koster 90 kr. med fri fragt.<\/p>\n
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Optiske Kuriositeter III forordet st\u00e5r der: Startende i 1997 har der v\u00e6ret en fast \u201dkolonne\u201d kaldet \u201dOptiske Kuriositeter\u201d i medlemsbladet DOPS-NYT for Dansk Optisk Selskab. I alt 26 artikler omhandlende mange forskellige som regel lidt specielle eller m\u00e5ske m\u00e6rkv\u00e6rdige emner inden for det optiske omr\u00e5de blev samlet i f\u00f8rste bind af bogen: \u201dOptiske Kuriositeter\u201d, som […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-4691","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/pages\/4691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/comments?post=4691"}],"version-history":[{"count":2,"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/pages\/4691\/revisions"}],"predecessor-version":[{"id":4741,"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/pages\/4691\/revisions\/4741"}],"wp:attachment":[{"href":"https:\/\/universetspuls.dk\/index.php\/wp-json\/wp\/v2\/media?parent=4691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}