Cosmographic Mystery

Cosmographic Mystery
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2016-10-04 17:22
This example uses geometric shapes to demonstrate mysterious phenomena in cosmology. It involves core mathematical concepts such as ellipses, squares, histograms, and quadratic functions. Using GeoGebra commands like Point, Intersect, OrthogonalPlane, etc., a complex geometric model is constructed. Suitable for high school and above students or teachers for teaching or exploring the connection between mathematics and cosmology.

GeoGebra Commands & Parameters

  1. Point(yAxis) → A
  2. Intersect(xAxis, zAxis) → O
  3. OrthogonalPlane(O, zAxis) → a
  4. Sphere(O, A) → b
  5. Intersect(xAxis, b) → B', B
  6. Intersect(zAxis, b) → C, C'
  7. Octahedron(A, B, C) → c, D, faceCEF, faceDEF, edgeAC, edgeAB, edgeBC, edgeAF, edgeCF, edgeAD, edgeDF, edgeBD, E, edgeBE, edgeDE, edgeCE, edgeEF, F, faceABC, faceACF, faceADF, faceABD, faceBDE, faceBCE
  8. Centroid(faceABC) → G
  9. Sphere(O, G) → d
  10. Line(O, C) → f
  11. Line(O, A) → g
  12. Sphere(O, A) → h
  13. IntersectPath(a, h) → k
  14. IntersectPath(a, d) → p
  15. Point(f) → H
  16. Plane(H, a) → l
  17. PointIn(l) → I
  18. Rotate(I, 72°, H, l) → I'
  19. Angle(I, H, I', l) → α
  20. Sphere(I, I') → m
  21. Intersect(f, m) → J, K
  22. Icosahedron(I, J, I') → n, L, faceII'J, faceII'N, faceINP, faceILP, faceIJL, faceJLQ, faceJMQ, faceI'JM, faceI'MR, faceI'NR, M, faceMQT, faceMRT, faceRTU, faceNRU, faceQST, faceSTU, facePSU, faceNPU, faceLQS, faceLPS, N, edgeII', edgeIJ, edgeI'J, edgeIN, edgeI'N, edgeIP, edgeNP, edgeIL, edgeLP, edgeJL, P, edgeJQ, edgeLQ, edgeJM, edgeMQ, edgeI'M, edgeI'R, edgeMR, edgeNR, edgeMT, edgeQT, Q, edgeRT, edgeRU, edgeTU, edgeNU, edgeST, edgeQS, edgeSU, edgePU, edgePS, edgeLS, R, S, T, U
  23. Midpoint(J, U) → V
  24. Plane(V, l) → o
  25. Centroid(faceIJL) → I_1
  26. Sphere(V, I_1) → u
  27. Line(V, g) → q
  28. Intersect(q, u) → W, Z
  29. Line(A, Z) → r
  30. Intersect(f, r) → A_1
  31. Line(A_1, I) → s
  32. Line(A_1, I') → t
  33. Sphere(A_1, Distance[A_1, I] / ratioico) → w
  34. Intersect(s, w) → B_1, C_1
  35. Intersect(t, w) → D_1, E_1
  36. Sphere(A_1, Distance[A_1, J] / ratioico) → a_1
  37. Intersect(f, a_1) → F_1, G_1
  38. Icosahedron(E_1, C_1, G_1) → b_1, H_1, face1, face6, face8, face7, face2, face4, face5, face3, face9, face10, J_1, face13, face14, face19, face16, face18, face20, face17, face15, face12, face11, K_1, edge6, edge1, edge2, edge8, edge11, edge9, edge19, edge7, edge13, edge3, L_1, edge5, edge14, edge4, edge16, edge10, edge12, edge17, edge20, edge18, edge25, M_1, edge26, edge27, edge30, edge21, edge28, edge24, edge29, edge23, edge22, edge15, N_1, O_1, P_1, Q_1
  39. IntersectPath(a, b_1) → poly1, R_1, C_2, f_1, g_1, h_1, i_1, j_1, k_1, l_1, m_1, n_1, S_1, p_1, T_1, U_1, V_1, W_1, Z_1, A_2, B_2
  40. Sphere(O, L_1) → d_1
  41. IntersectPath(a, d_1) → e_1
  42. Intersect(g, e_1) → D_2, E_2
  43. PointIn(l) → F_2
  44. Rotate(F_2, 72°, H, l) → G_2
  45. Angle(F_2, H, G_2, l) → β
  46. Dodecahedron(F_2, G_2, l) → q_1, H_2, Q_2, R_2, S_2, T_2, U_2, V_2, W_2, Z_2, A_3, face21, I_2, face23, face22, face24, face25, face26, face30, face31, face27, face28, face29, J_2, face32, edge32, edge31, edge34, edge36, edge38, edge33, edge40, edge48, edge50, K_2, edge49, edge41, edge35, edge42, edge43, edge37, edge44, edge45, edge39, edge46, L_2, edge47, edge54, edge60, edge55, edge57, edge51, edge56, edge52, edge58, edge53, M_2, edge59, N_2, O_2, P_2
  47. Intersect(f, face32) → B_3
  48. Midpoint(B_3, H) → C_3
  49. Plane(C_3, l) → r_1
  50. Sphere(C_3, B_3) → s_1
  51. Line(C_3, g) → f_2
  52. Intersect(f_2, s_1) → D_3, E_3
  53. Line(D_2, E_3) → g_2
  54. Intersect(f, g_2) → F_3
  55. Plane(O_1, a) → u_1
  56. Line(F_3, F_2) → h_2
  57. Line(F_3, G_2) → i_2
  58. Intersect(h_2, u_1) → G_3
  59. Intersect(i_2, u_1) → H_3
  60. Dodecahedron(G_3, H_3, u_1) → v_1, I_3, R_3, S_3, T_3, U_3, V_3, W_3, Z_3, A_4, B_4, face33, J_3, face35, face34, face36, face37, face38, face42, face43, face39, face40, face41, K_3, face44, edge62, edge61, edge64, edge66, edge68, edge63, edge70, edge78, edge80, L_3, edge79, edge71, edge65, edge72, edge73, edge67, edge74, edge75, edge69, edge76, M_3, edge77, edge84, edge90, edge85, edge87, edge81, edge86, edge82, edge88, edge83, N_3, edge89, O_3, P_3, Q_3
  61. Sphere(O, L_3) → a_2
  62. PointIn(l) → C_4
  63. Rotate(C_4, 120°, H, l) → D_4
  64. Angle(C_4, H, D_4, l) → γ
  65. Polygon(C_4, D_4, 3, l) → poly2, j_2, k_2, l_2, E_4
  66. Point(Circle[Midpoint[C_4, D_4], (Distance[C_4, D_4] * sqrt(3) / 2), Segment[C_4, D_4]]) → F_4
  67. Tetrahedron(C_4, D_4, F_4) → c_2, G_4, edge96, edge95, face45, face47, face46, face48, edge92, edge91, edge94, edge93
  68. Centroid(face46) → H_4
  69. Centroid(face47) → I_4
  70. Segment(I_4, H) → m_2
  71. Midpoint(I_4, H) → J_4
  72. Midpoint(H, H_4) → K_4
  73. Segment(H, H_4) → n_2
  74. OrthogonalPlane(J_4, m_2) → d_2
  75. OrthogonalPlane(K_4, n_2) → e_2
  76. IntersectPath(e_2, d_2) → p_2
  77. Intersect(f, p_2) → L_4
  78. Sphere(L_4, H) → o_2
  79. Plane(L_4, l) → q_2
  80. Line(L_4, g) → r_2
  81. Intersect(g, a_2) → M_4, N_4
  82. Intersect(r_2, o_2) → O_4, P_4
  83. Line(P_4, N_4) → t_2
  84. Intersect(f, t_2) → Q_4
  85. Line(Q_4, C_4) → f_3
  86. Line(Q_4, D_4) → g_3
  87. Line(Q_4, F_4) → h_3
  88. Intersect(f, a_2) → R_4, S_4
  89. Plane(S_4, a) → u_2
  90. Intersect(f_3, u_2) → T_4
  91. Intersect(t_2, u_2) → U_4
  92. Intersect(h_3, u_2) → V_4
  93. Intersect(g_3, u_2) → W_4
  94. Point(Circle[Midpoint[W_4, V_4], (Distance[W_4, V_4] * sqrt(3) / 2), Segment[W_4, V_4]]) → Z_4
  95. Tetrahedron(W_4, V_4, Z_4) → v_2, A_5, edge102, edge99, face49, face52, face50, face51, edge100, edge97, edge98, edge101
  96. Sphere(O, A_5) → a_3
  97. Intersect(f, a_3) → B_5, C_5
  98. Intersect(xAxis, a_3) → D_5, E_5
  99. Intersect(yAxis, a_3) → F_5, G_5
  100. Plane(A_5, a) → b_3
  101. Plane(C_5, a) → c_3
  102. OrthogonalPlane(E_5, xAxis) → d_3
  103. OrthogonalPlane(D_5, xAxis) → e_3
  104. OrthogonalPlane(G_5, g) → i_3
  105. OrthogonalPlane(F_5, g) → j_3
  106. IntersectPath(b_3, j_3) → k_3
  107. IntersectPath(d_3, b_3) → l_3
  108. IntersectPath(i_3, b_3) → m_3
  109. IntersectPath(e_3, b_3) → n_3
  110. Intersect(l_3, m_3) → H_5
  111. Intersect(k_3, l_3) → I_5
  112. Intersect(m_3, n_3) → J_5
  113. OrthogonalLine(J_5, c_3) → p_3
  114. OrthogonalLine(H_5, c_3) → q_3
  115. Intersect(p_3, c_3) → K_5
  116. Intersect(q_3, c_3) → L_5
  117. Point(Circle[K_5, Distance[L_5, K_5], Segment[L_5, K_5]]) → M_5
  118. Cube(L_5, K_5, M_5) → o_3, N_5, face57, face58, edge106, edge103, edge104, edge108, edge107, edge110, edge112, edge111, O_5, edge105, edge113, edge109, edge114, P_5, Q_5, R_5, face53, face56, face54, face55
  119. Sphere(O, P_5) → s_3
  120. Intersect(f, s_3) → T_5, U_5
  121. IntersectPath(a, s_3) → c_4
  122. Segment(T_5, U_5) → f_4
  123. Sphere(U_5, ((w_3 * f_4)) / 5) → a_4
  124. Intersect(f, a_4) → S_5, W_5
  125. Plane(S_5, a) → v
  126. IntersectPath(v, s_3) → t_1
  127. IntersectPath(v, o_3) → poly3, V_5, Z_5, A_6, B_6, s_2, g_4, h_4, i_4
  128. IntersectPath(v, a_3) → d_4
  129. IntersectPath(v, v_2) → poly4, C_6, D_6, E_6, j_4, k_4, l_4
  130. IntersectPath(v, a_2) → e_4
  131. IntersectPath(v, v_1) → poly5, F_6, O_6, m_4, n_4, p_4, q_4, r_4, s_4, t_4, b_4, f_5, G_6, g_5, H_6, I_6, J_6, K_6, L_6, M_6, N_6
  132. IntersectPath(v, d_1) → c_5
  133. IntersectPath(v, b_1) → poly6, P_6, A_7, h_5, i_5, j_5, k_5, l_5, m_5, n_5, p_5, q_5, Q_6, r_5, R_6, S_6, T_6, U_6, V_6, W_6, Z_6
  134. IntersectPath(v, h) → d_5
  135. IntersectPath(v, c) → poly7, B_7, C_7, D_7, E_7, s_5, t_5, a_5, b_5
  136. IntersectPath(v, d) → e_5

AI Drawing Prompt Reference

This is a complex geometric model demonstrating mysterious phenomena in cosmology. It includes key objects such as point O, vertical plane a, sphere b, and ellipsoid c. These objects are interconnected through intersections, sphere constructions, and ellipsoid generation. The construction order starts with determining the center point, then building planes, spheres, and ellipsoids, ultimately forming a complex geometric structure. It is suitable for teaching and exploring the connection between mathematics and the cosmos.
The prompt above was compiled from the original drawing commands and is for reference only.