Astronomy
Light climbs out of gravity
Send identical light pulses from a compact star. Increase compactness and compare the emitter’s clock with a distant observer’s clock.
The model and its limits
Static Schwarzschild emitter and observer at infinity. Wave crests visualize frequency change, not a numerical null-geodesic trajectory. No rotating spacetime.
Equations used in the module
Equations dτ/dt=√(1-2GM/Rc²); 1+z=(1-2GM/Rc²)^(-1/2); λ∞=(1+z)λ_emit
