#SatzvonDesargues
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#SatzvonDesargues #Desarguestheorem

#sharingisthenewlearning
#Bildung #education
#Geometrie #geometry
#Mathematik #mathematics #maths #math #ProjektiveGeometrie: #Punkt & #Gerade sind das Gleiche!
#projectivegeometry: #point & #line are the same!
#Dyskalkulie #dyscalculia
#Philosophie #philosophy
My screenshot reads: " The Theorem of Gérard Desargues (1591–1661) or Higher Mathematics in Images Dyscalculia doesn't have to be a barrier to understanding mathematical concepts. Sometimes, just looking is enough. [The following description is made for all people, including visually impaired ones.] The left image shows a line drawn beneath the handwritten word “Equality.” Hanging from this line are three projectors, each marked with a thick blue dot, emitting a single cone of light. Only the two boundary rays of each beam are drawn as lines. At the bottom of the image is a narrow, horizontal "V" shape pointing to the left. A line passes through the tip of this V, dividing it into two narrower Vs that are roughly equal in size. The tip itself is marked with a thick blue dot. The left projector shines downward to the left, illuminating a small portion of the upper arm of the V and a part of the dividing line, yielding four intersection points highlighted as thick blue dots. The middle projector illuminates the same portion of the upper arm as the left projector, and additionally a part of the lower arm of the V. Two more intersection points appear, also marked with thick blue dots. The right projector lights up the same part of the dividing line as the left projector and the same part of the lower arm as the middle one. No further intersection points are created. There are ten points, with three of them lying on each of ten distinct lines." My screenshot reads: "The image is titled 'Equality' for good reason: each of the ten points can be understood as a center from which three lines extend, conecting the corresponding vertices of two triangles. In the right image, the tip of the V has been designated as one such center and transformed into a flower with blue stamens and small red petals. The two associated triangles are filled with red dots. The beamer to the left became another center, transformed into a blue flower. Its corresponding triangles are filled with blue dots. At the intersection of two lines—one originating from the red flower, the other from the blue—a green flower appears as a third center. It is located between two triangles that are filled with green dots."
August 4, 2025 at 6:29 PM