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<blockquote data-quote="Hobbes" data-source="post: 2316169" data-attributes="member: 3371"><p>A Timely Tip</p><p></p><p>In any long term SHTF scenario you might lose the ability to accurately measure time.</p><p>Batteries run down and people forget to wind clocks.</p><p><em></em></p><p><em>That's my excuse anyway, I've always been fascinated with sundials.</em></p><p></p><p>Ordinary horizontal sundials:</p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_7_75_Garden_sundi071bdda18209353e34325c6855002b77.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_6_61_Sundial_in_Scd2a3b8153bc95c9a54ae88d3a7dcc3b.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>A vertical sundial in Beijing China</p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_3_35_Beijing_sundial.jpg_794px_Beijing_sundial.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Armillary type sundial</p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_8_8b_Zw_stelling.jpg_432px_Zw_stelling.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>If you only want accuracy to within 15 minutes or so all you have to do at our latitude is align north and south and then adjust declination.</p><p>More accuracy than that require some adjustment because of the path that the sun makes in the sky over the course of a year.</p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_7_74_Analemma_pat521ac1a1b52c1be6a72692bbeabafce0.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p>Fictional Photomontage (actual positions of the sun are just estimated and have nothing to do with the German landscape) illustrating an analemma pattern in the sky. Were one to take a photo of the sun each week for a year and combine the images taken, this pattern would be visible</p><p></p><p>They make sundials that incorporate that deviation into the dial to make for very accurate time.</p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_b_bf_Precision_su702bea3f3d8951a8ea0f318b5b374498.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>I might settle for one of these in the garden area.</p><p><img src="https://www.okshooters.com/data/MetaMirrorCache/ecx.images_amazon.com_images_I_61rMAWoyUrL._SL1500_.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Hobbes, post: 2316169, member: 3371"] A Timely Tip In any long term SHTF scenario you might lose the ability to accurately measure time. Batteries run down and people forget to wind clocks. [I] That's my excuse anyway, I've always been fascinated with sundials.[/I] Ordinary horizontal sundials: [IMG]https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_7_75_Garden_sundi071bdda18209353e34325c6855002b77.jpg[/IMG] [IMG]https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_6_61_Sundial_in_Scd2a3b8153bc95c9a54ae88d3a7dcc3b.jpg[/IMG] A vertical sundial in Beijing China [IMG]https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_3_35_Beijing_sundial.jpg_794px_Beijing_sundial.jpg[/IMG] Armillary type sundial [IMG]https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_8_8b_Zw_stelling.jpg_432px_Zw_stelling.jpg[/IMG] If you only want accuracy to within 15 minutes or so all you have to do at our latitude is align north and south and then adjust declination. More accuracy than that require some adjustment because of the path that the sun makes in the sky over the course of a year. [IMG]https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_7_74_Analemma_pat521ac1a1b52c1be6a72692bbeabafce0.jpg[/IMG] Fictional Photomontage (actual positions of the sun are just estimated and have nothing to do with the German landscape) illustrating an analemma pattern in the sky. Were one to take a photo of the sun each week for a year and combine the images taken, this pattern would be visible They make sundials that incorporate that deviation into the dial to make for very accurate time. [IMG]https://www.okshooters.com/data/MetaMirrorCache/upload.wikimedia.org_wikipedia_commons_thumb_b_bf_Precision_su702bea3f3d8951a8ea0f318b5b374498.jpg[/IMG] I might settle for one of these in the garden area. [IMG]https://www.okshooters.com/data/MetaMirrorCache/ecx.images_amazon.com_images_I_61rMAWoyUrL._SL1500_.jpg[/IMG] [/QUOTE]
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