Cosmographic Mystery
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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
Point(yAxis) → AIntersect(xAxis, zAxis) → OOrthogonalPlane(O, zAxis) → aSphere(O, A) → bIntersect(xAxis, b) → B', BIntersect(zAxis, b) → C, C'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, faceBCECentroid(faceABC) → GSphere(O, G) → dLine(O, C) → fLine(O, A) → gSphere(O, A) → hIntersectPath(a, h) → kIntersectPath(a, d) → pPoint(f) → HPlane(H, a) → lPointIn(l) → IRotate(I, 72°, H, l) → I'Angle(I, H, I', l) → αSphere(I, I') → mIntersect(f, m) → J, KIcosahedron(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, UMidpoint(J, U) → VPlane(V, l) → oCentroid(faceIJL) → I_1Sphere(V, I_1) → uLine(V, g) → qIntersect(q, u) → W, ZLine(A, Z) → rIntersect(f, r) → A_1Line(A_1, I) → sLine(A_1, I') → tSphere(A_1, Distance[A_1, I] / ratioico) → wIntersect(s, w) → B_1, C_1Intersect(t, w) → D_1, E_1Sphere(A_1, Distance[A_1, J] / ratioico) → a_1Intersect(f, a_1) → F_1, G_1Icosahedron(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_1IntersectPath(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_2Sphere(O, L_1) → d_1IntersectPath(a, d_1) → e_1Intersect(g, e_1) → D_2, E_2PointIn(l) → F_2Rotate(F_2, 72°, H, l) → G_2Angle(F_2, H, G_2, l) → βDodecahedron(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_2Intersect(f, face32) → B_3Midpoint(B_3, H) → C_3Plane(C_3, l) → r_1Sphere(C_3, B_3) → s_1Line(C_3, g) → f_2Intersect(f_2, s_1) → D_3, E_3Line(D_2, E_3) → g_2Intersect(f, g_2) → F_3Plane(O_1, a) → u_1Line(F_3, F_2) → h_2Line(F_3, G_2) → i_2Intersect(h_2, u_1) → G_3Intersect(i_2, u_1) → H_3Dodecahedron(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_3Sphere(O, L_3) → a_2PointIn(l) → C_4Rotate(C_4, 120°, H, l) → D_4Angle(C_4, H, D_4, l) → γPolygon(C_4, D_4, 3, l) → poly2, j_2, k_2, l_2, E_4Point(Circle[Midpoint[C_4, D_4], (Distance[C_4, D_4] * sqrt(3) / 2), Segment[C_4, D_4]]) → F_4Tetrahedron(C_4, D_4, F_4) → c_2, G_4, edge96, edge95, face45, face47, face46, face48, edge92, edge91, edge94, edge93Centroid(face46) → H_4Centroid(face47) → I_4Segment(I_4, H) → m_2Midpoint(I_4, H) → J_4Midpoint(H, H_4) → K_4Segment(H, H_4) → n_2OrthogonalPlane(J_4, m_2) → d_2OrthogonalPlane(K_4, n_2) → e_2IntersectPath(e_2, d_2) → p_2Intersect(f, p_2) → L_4Sphere(L_4, H) → o_2Plane(L_4, l) → q_2Line(L_4, g) → r_2Intersect(g, a_2) → M_4, N_4Intersect(r_2, o_2) → O_4, P_4Line(P_4, N_4) → t_2Intersect(f, t_2) → Q_4Line(Q_4, C_4) → f_3Line(Q_4, D_4) → g_3Line(Q_4, F_4) → h_3Intersect(f, a_2) → R_4, S_4Plane(S_4, a) → u_2Intersect(f_3, u_2) → T_4Intersect(t_2, u_2) → U_4Intersect(h_3, u_2) → V_4Intersect(g_3, u_2) → W_4Point(Circle[Midpoint[W_4, V_4], (Distance[W_4, V_4] * sqrt(3) / 2), Segment[W_4, V_4]]) → Z_4Tetrahedron(W_4, V_4, Z_4) → v_2, A_5, edge102, edge99, face49, face52, face50, face51, edge100, edge97, edge98, edge101Sphere(O, A_5) → a_3Intersect(f, a_3) → B_5, C_5Intersect(xAxis, a_3) → D_5, E_5Intersect(yAxis, a_3) → F_5, G_5Plane(A_5, a) → b_3Plane(C_5, a) → c_3OrthogonalPlane(E_5, xAxis) → d_3OrthogonalPlane(D_5, xAxis) → e_3OrthogonalPlane(G_5, g) → i_3OrthogonalPlane(F_5, g) → j_3IntersectPath(b_3, j_3) → k_3IntersectPath(d_3, b_3) → l_3IntersectPath(i_3, b_3) → m_3IntersectPath(e_3, b_3) → n_3Intersect(l_3, m_3) → H_5Intersect(k_3, l_3) → I_5Intersect(m_3, n_3) → J_5OrthogonalLine(J_5, c_3) → p_3OrthogonalLine(H_5, c_3) → q_3Intersect(p_3, c_3) → K_5Intersect(q_3, c_3) → L_5Point(Circle[K_5, Distance[L_5, K_5], Segment[L_5, K_5]]) → M_5Cube(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, face55Sphere(O, P_5) → s_3Intersect(f, s_3) → T_5, U_5IntersectPath(a, s_3) → c_4Segment(T_5, U_5) → f_4Sphere(U_5, ((w_3 * f_4)) / 5) → a_4Intersect(f, a_4) → S_5, W_5Plane(S_5, a) → vIntersectPath(v, s_3) → t_1IntersectPath(v, o_3) → poly3, V_5, Z_5, A_6, B_6, s_2, g_4, h_4, i_4IntersectPath(v, a_3) → d_4IntersectPath(v, v_2) → poly4, C_6, D_6, E_6, j_4, k_4, l_4IntersectPath(v, a_2) → e_4IntersectPath(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_6IntersectPath(v, d_1) → c_5IntersectPath(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_6IntersectPath(v, h) → d_5IntersectPath(v, c) → poly7, B_7, C_7, D_7, E_7, s_5, t_5, a_5, b_5IntersectPath(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.