Editing 2121: Light Pollution
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==Explanation== | ==Explanation== | ||
− | This comic shows how {{w|Light pollution|light pollution}} in cities | + | This comic shows how {{w|Light pollution|light pollution}} in cities affect what you can see from the night sky. The first three panels show realistic examples of what you could see from the sky inside a large city, in the suburbs and far away from light pollution. These panels roughly correlate on the {{w|Bortle Scale}} to 8-9 (city), 5-6 (suburbs) and 2-3 (remote area). |
− | The last panel contrasts these for comedic effect with fake things that are not actually present in the night sky.{{Citation needed}} | + | The last panel contrasts these for comedic effect with fake things in the sky that are not actually present in the night sky.{{Citation needed}} "{{w|Celestial spheres|Crystal spheres}}" is an ancient theory about the heavens and what it was that held up the stars, before it was commonly accepted that space could be made of hard vacuum and celestial bodies held there by laws of inertia and gravity and vast distances. The spheres are nested inside each other concentrically. Randall proposes they are held by {{w|latticework}} like that which supports the Eiffel Tower, and that the lattice structure could be seen long ago when the sky was much darker. It is also a possible reference to the science fiction short-story "{{w|The_Crystal_Spheres|The Crystal Spheres}}" by David Brin, where the solar system is surrounded by hard crystal spheres that have to be broken before leaving as an explanation of the Fermi Paradox. |
Although all crystals do have a {{w|Crystal structure|crystal lattice}}, as in the [https://www.merriam-webster.com/dictionary/crystal meaning 3] of the word "crystal" in Merriam-Webster (<i>a body that [...] has a regularly repeating internal arrangement of its atoms and often external plane faces</i>), these lattices are sub-microscopic and would be invisible in the sky. Additionally, crystal structure was not yet known at the time that the celestial spheres theory was popular. | Although all crystals do have a {{w|Crystal structure|crystal lattice}}, as in the [https://www.merriam-webster.com/dictionary/crystal meaning 3] of the word "crystal" in Merriam-Webster (<i>a body that [...] has a regularly repeating internal arrangement of its atoms and often external plane faces</i>), these lattices are sub-microscopic and would be invisible in the sky. Additionally, crystal structure was not yet known at the time that the celestial spheres theory was popular. | ||
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==Transcript== | ==Transcript== | ||
− | :[Four views of the night sky are shown | + | {{incomplete transcript|Do NOT delete this tag too soon.}} |
+ | |||
+ | :[Four views of the night sky are shown among each other. The text on top reads:] | ||
:'''Light Pollution and the Disappearing Night Sky''' | :'''Light Pollution and the Disappearing Night Sky''' | ||
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:(Cities) | :(Cities) | ||
− | :[ | + | :[On the second view more stars are visible and some faint blurry white clouds on a dark-gray background are visible.] |
:Moderate Light Pollution | :Moderate Light Pollution | ||
:(Suburbs) | :(Suburbs) | ||
− | :[A lot of stars | + | :[A lot of stars, even partly colored, and a clear image of many clouds on a dark background are shown.] |
:Low Light Pollution | :Low Light Pollution | ||
:(Very remote areas) | :(Very remote areas) | ||
− | :[The | + | :[The last image shows the same region as above but with even more exposed stars and clouds, the colors are also more explicit. A faint lattice of triangles overlaying the image to its full extent and three ghastly silhouettes of sail-ships are shown embedded in clouds. The text on the top left reads:] |
:No Light Pollution | :No Light Pollution | ||
:(How the sky should look) | :(How the sky should look) | ||
:[Four arrows are pointing to some triangles:] | :[Four arrows are pointing to some triangles:] | ||
:Lattice of the crystal spheres | :Lattice of the crystal spheres | ||
− | :[Three arrows are indicating the | + | :[Three arrows are indicating the sail-ships:] |
:Ships of the Sky King | :Ships of the Sky King | ||
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[[Category:Comics with color]] | [[Category:Comics with color]] | ||
− | |||
[[Category:Astronomy]] | [[Category:Astronomy]] |