ISS, GPS, GLONASS, Galileo, Iridium, and Starlink constellations with ground tracks and orbital mechanics.
P-wave and S-wave propagation with geometric spreading, attenuation, shadow zones, and antipodal focusing.
Day/night boundary across seasons with twilight, city lights, and a solar perspective view mode.
Physics-based hurricane simulation with pressure gradient, Coriolis force, and friction. Historical tracks included.
Earth's dipole field: strength, declination, inclination, aurora, South Atlantic Anomaly, and conjugate points.
Rotating neutron star with tilted magnetic axis, polar hotspots, particle cascades, and dipole field lines.
Visualize Y_l^m on the sphere: zonal, sectoral, and tesseral modes with nodal lines and phase animation.