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How to explore Spacetime Curvature 3D Explorer

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Open the Spacetime Curvature 3D Explorer, read r_s = 2GM/c^2 with Sun ~2.95 km, then switch Earth / Sun / 10 Msun BH to deepen the teaching grid.

  1. Open https://freetoolonline.com/space-3d/spacetime-curvature.html and wait for the curved grid and teal geodesics.
  2. Read the facts panel: 2GM/c^2, Sun ~2.95 km, Earth ~8.87 mm.
  3. Press Earth, Sun, and 10 Msun BH to compare depth.
  4. Toggle geodesics and the exaggerated r_s ring.
  5. Compare with Gravity Well 3D for escape velocities, or Light Cone 3D for flat causal regions.

Spacetime curvature key figures

BodySchwarzschild radius (r_s = 2GM/c^2)
Sun~2.95 km
Earth~8.87 mm

Next: the when guide or vs alternatives. Open the Spacetime Curvature 3D Explorer.

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