Editing 2764: Cosmological Nostalgia Content
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==Explanation== | ==Explanation== | ||
+ | {{incomplete|1=Created by a Z=90s KID - What red tint around Megan. Seems invisible. Is it there? More explanation of what the click bait in the title text refers to in the context of the Einstein blunder and why that belongs in this nostalgia comic. Do NOT delete this tag too soon.}} | ||
− | + | In cosmology Z is the symbol for {{w|Redshift|redshift}}, which is the phenomenon where photons travelling from an object that is moving away from the observer exhibits an increase in wavelength, resulting in its colour shifting towards the red end of the spectrum. Due to the accelerating expansion of the universe, objects that are further away from us are moving away from us at a faster velocity, resulting in higher redshift. As light has finite velocity, objects that are further away from us are also further back in time. Therefore, Megan is stating that only people with high redshift (Z=10) will be sufficiently further back in the past to remember when the first stars were still forming. Megan also has a red tint indicating, indicating that she is one such Z=10 kid. | |
− | + | White Hat, meanwhile, is referencing the fact that the universe has {{w|Scale factor (cosmology)|three eras}}: radiation dominated, matter dominated, and dark energy dominated. As the universe expands, the density of radiation and matter decreases due to their dilution, causing the universe, which first started off being dominated by radiation, to then become dominated by matter, then by dark energy (which does not dilute as the universe expands). Dark energy dominated era, which is when "dark energy started accelerating the universe's acceleration" started around 5 billion years ago while {{w|Evolution of bacteria|bacteria evolved around 3 billion years ago}}, meaning that they evolved closer to dark energy domination than to today. | |
− | + | The title text refers to Einstein's inclusion of the {{w|Cosmological constant|cosmological constant}} to his theory of general relativity in order to attain a static model of the universe, which he later removed, reportedly referring to it as his "biggest blunder". Cosmological constant has, today, been generally accepted as a part of the current cosmological model, relating to the concept of dark energy. | |
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− | The title text refers to Einstein's inclusion of the {{w|Cosmological constant|cosmological constant}} to his theory of general relativity in order to attain a static model of the universe, which he later removed, reportedly referring to it as his "biggest blunder". Cosmological constant has, today, been generally accepted as a part of the current cosmological model, relating to the concept of dark energy | ||
==Transcript== | ==Transcript== | ||
− | :[Megan (with a red tint) holds both her arms out and up while she is talking to Cueball to the left of her. To the right of Megan White Hat is holding both arms out and down while he is talking to Ponytail to the right of him.] | + | :[Megan, (with a red tint?), holds both her arms out and up while she is talking to Cueball to the left of her. To the right of Megan White Hat is holding both arms out and down while he is talking to Ponytail to the right of him.] |
− | :Megan: Only | + | :Megan: Only Z=10 kids remember watching the cool dark gas that suffused the universe being eaten away by expanding bubbles of plasma around the first stars! |
:White Hat: Want to feel old? Bacteria evolved closer to when dark energy started accelerating the universe's expansion than to today! | :White Hat: Want to feel old? Bacteria evolved closer to when dark energy started accelerating the universe's expansion than to today! | ||
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[[Category:Comics featuring White Hat]] | [[Category:Comics featuring White Hat]] | ||
[[Category:Comics featuring Ponytail]] | [[Category:Comics featuring Ponytail]] | ||
− | [[Category:Comics featuring real people]] <!-- | + | [[Category:Comics featuring real people]] <!-- Einsetin --> |
[[Category:Comics to make one feel old]] | [[Category:Comics to make one feel old]] | ||
− | [[Category: | + | [[Category:Astronomy]] |
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[[Category:Biology]] <!-- Evolution of Bacteria --> | [[Category:Biology]] <!-- Evolution of Bacteria --> | ||
[[Category:Clickbait]] | [[Category:Clickbait]] |