Light Wave Theory

In this universe, there is no quantum mechanics or relativity. Light, magnetic field, and gravity are all mechanical waves that propagate in the ether. The speed of light is no longer the upper limit that restrains human civilization. Arrogant humans think they understand all the mysteries of the universe. The protagonist Tang Rui is in such a universe, What interesting things will happen? (This book will be updated slowly, but it will never stop updating)