Editing 2903: Earth/Venus Venn Diagram
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'''Impact ejecta''' are the materials expelled from the impact site, consisting of molten rock, vaporized material, and solid debris, flung out at high velocities due to the energy released by the collision. The production of impact ejecta would indeed occur in the overlapping impact area. | '''Impact ejecta''' are the materials expelled from the impact site, consisting of molten rock, vaporized material, and solid debris, flung out at high velocities due to the energy released by the collision. The production of impact ejecta would indeed occur in the overlapping impact area. | ||
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+ | This joke is similar to the 'Pie chart' meme, showing 'pie I have eaten' and 'pie I have not yet eaten' as a mathematically conventional pie chart formed by a photograph of the actual subject of the chart: a real-world partially-eaten pie. | ||
The title text is [[2721: Euler Diagrams|another xkcd joke]] about the difference between a [[:Category:Venn diagrams|Venn]] diagram and an [[:Category:Euler diagrams|Euler]] diagram, which is similar to a Venn diagram except that it's acceptable to have circles (or other shapes) that do not intersect if there are no common elements between those sets. The observation that {{w|Mars}} is still orbiting by itself makes Mars an additional set (out of the frame of the diagram), in addition to - but not intersecting with - Earth and Venus, making this technically an {{w|Euler diagram}}. Therefore if the Earth-Venus collision is a "Venn apocalypse," the inclusion of Mars as a non-intersecting entity makes this technically an "Euler apocalypse." | The title text is [[2721: Euler Diagrams|another xkcd joke]] about the difference between a [[:Category:Venn diagrams|Venn]] diagram and an [[:Category:Euler diagrams|Euler]] diagram, which is similar to a Venn diagram except that it's acceptable to have circles (or other shapes) that do not intersect if there are no common elements between those sets. The observation that {{w|Mars}} is still orbiting by itself makes Mars an additional set (out of the frame of the diagram), in addition to - but not intersecting with - Earth and Venus, making this technically an {{w|Euler diagram}}. Therefore if the Earth-Venus collision is a "Venn apocalypse," the inclusion of Mars as a non-intersecting entity makes this technically an "Euler apocalypse." | ||
As a thought experiment, if you expand the diagram infinitely, a "{{w|Big Crunch|Venn apocalypse}}" would consist of every body in the universe being in the process of colliding, simultaneously. This would be very dangerous.{{Citation needed}} | As a thought experiment, if you expand the diagram infinitely, a "{{w|Big Crunch|Venn apocalypse}}" would consist of every body in the universe being in the process of colliding, simultaneously. This would be very dangerous.{{Citation needed}} | ||
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==Transcript== | ==Transcript== |