Gravitational energy structures the universe. It turned the primeval cosmic soup into hydrogen and helium and then turned these simple elements into stars. Our sun works as a great nuclear reactor converting gravitational into electromagnetic energy, and plants on Earth photosynthesize a tiny portion of this into chemical energy. Animals then consume plants, metabolizing chemical energy into kinetic energy. The interplay between solar and other planets’ gravities shapes the earth’s orbit, determining how much electromagnetic energy we get, how much chemical energy plants create, and how much
...more
