Editing 2903: Earth/Venus Venn Diagram
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==Explanation== | ==Explanation== | ||
− | + | {{incomplete|Created by a PLANETARY IMPACT OF EARTH ∩ VENUS - Please continue to expand the description. Do NOT delete this tag too soon.}} | |
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− | ''' | + | This clever diagram is simultaneously both a '''{{w|Venn diagram}}''' and a '''positional diagram'''. |
+ | * As a '''positional diagram''', it depicts {{w|Earth}} and {{w|Venus}} colliding and shows that "shockwaves and production of impact ejecta" would occur between them. The relative circle sizes are accurate; Venus is a bit smaller than Earth. | ||
+ | * A Venn diagram compares two entities and shows, in the middle area, traits common to both, and in the non-overlapping regions, separate distinct traits. As a '''Venn diagram''', it accurately shows that each planet now consists of a region that is recognisably the originating planet, and another that is "shockwaves and production of impact ejecta". | ||
− | The title text | + | The title text notes that {{w|Mars}} is still orbiting by itself, though presumably out of the frame of the "diagram", since we can't see it. Therefore, this actually makes the overall system an {{w|Euler diagram}} rather than a Venn one, as every circle in any way represented in a Venn diagram must intersect. xkcd has referenced the difference between Euler and Venn diagrams [[2721: Euler Diagrams|before]]. The title text also calls it an "Euler apocalypse" to emphasize that it represents an important event rather than the abstract analysis of properties that either type of diagram normally represents. Going off of this, a "{{w|Big Crunch|Venn apocalypse}}" would consist of every (present) spherical body in the universe colliding simultaneously. |
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==Transcript== | ==Transcript== |