Solving the Friedmann equations to model the expansion of our universe.
Explaining the concept and simulating gravitational slingshot of a spacecraft passing a planet.
Computes the precession of Mercury by linear extrapolation.
Discussion of orbits in the Schwarzschild Geometry.
Applying the fourth order Runge-Kutta method and the adaptive step size Runge-Kutta method to calculate the trajectories of three bodies.
Studying how a third mass behaves in the effective gravitational potential resulting from two opposing masses (here: Sun and Earth).
Applying the explicit and implicit Euler methods and the fourth order Runge-Kutta method to calculate the trajectory of the Earth around the Sun.